Backlinks
| Referring page | DR | Ref. domains | Linked domains | Anchor and target URL |
|---|---|---|---|---|
|
what-advances-has-materialism.html
http://www.skepticaleye.com/2017/11/what-advances-has-materialism.html
skepticaleye.com
|
13 | 15 | 1,180 |
Center for the Study of Innovative Freedom
https://c4sif.org/
DOFOLLOW
|
|
what-advances-has-materialism.html
http://www.skepticaleye.com/2017/11/what-advances-has-materialism.html
skepticaleye.com
|
13 | 15 | 1,180 |
Patent Troll Leigh Rothschild vs. Valve
https://c4sif.org/2026/02/patent-troll-rothschild-vs-valve
DOFOLLOW
|
|
animals-blamed-for-seducing-humans.html
http://www.skepticaleye.com/2012/01/animals-blamed-for-seducing-humans.html
skepticaleye.com
|
13 | 15 | 1,180 |
Center for the Study of Innovative Freedom
https://c4sif.org/
DOFOLLOW
|
|
animals-blamed-for-seducing-humans.html
http://www.skepticaleye.com/2012/01/animals-blamed-for-seducing-humans.html
skepticaleye.com
|
13 | 15 | 1,180 |
Patent Troll Leigh Rothschild vs. Valve
https://c4sif.org/2026/02/patent-troll-rothschild-vs-valve
DOFOLLOW
|
|
philly-tour-guides-return-to-federal.html
http://www.skepticaleye.com/2011/01/philly-tour-guides-return-to-federal.html
skepticaleye.com
|
13 | 15 | 1,180 |
Center for the Study of Innovative Freedom
https://c4sif.org/
DOFOLLOW
|
|
philly-tour-guides-return-to-federal.html
http://www.skepticaleye.com/2011/01/philly-tour-guides-return-to-federal.html
skepticaleye.com
|
13 | 15 | 1,180 |
Kant on Intellectual Property
https://c4sif.org/2026/02/kant-on-intellectual-property
DOFOLLOW
|
|
i-have-bloggers-block.html
http://www.skepticaleye.com/2011/05/i-have-bloggers-block.html
skepticaleye.com
|
13 | 15 | 1,180 |
Center for the Study of Innovative Freedom
https://c4sif.org/
DOFOLLOW
|
|
i-have-bloggers-block.html
http://www.skepticaleye.com/2011/05/i-have-bloggers-block.html
skepticaleye.com
|
13 | 15 | 1,180 |
Patent Troll Leigh Rothschild vs. Valve
https://c4sif.org/2026/02/patent-troll-rothschild-vs-valve
DOFOLLOW
|
|
are-you-perfectly-happy-with-your.html
http://www.skepticaleye.com/2009/10/are-you-perfectly-happy-with-your.html
skepticaleye.com
|
13 | 15 | 1,180 |
Machlup Review of Fox, Monopolies and Patents, A Study of the History and
Future of the Patent Monopoly
https://c4sif.org/2026/02/machlup-review-fox-monopolies-and-patents
DOFOLLOW
|
|
are-you-perfectly-happy-with-your.html
http://www.skepticaleye.com/2009/10/are-you-perfectly-happy-with-your.html
skepticaleye.com
|
13 | 15 | 1,180 |
Center for the Study of Innovative Freedom
https://c4sif.org/
DOFOLLOW
|
|
mugshots-of-1920s.html
http://www.skepticaleye.com/2014/02/mugshots-of-1920s.html
skepticaleye.com
|
13 | 15 | 1,180 |
Center for the Study of Innovative Freedom
https://c4sif.org/
DOFOLLOW
|
|
mugshots-of-1920s.html
http://www.skepticaleye.com/2014/02/mugshots-of-1920s.html
skepticaleye.com
|
13 | 15 | 1,180 |
Kant on Intellectual Property
https://c4sif.org/2026/02/kant-on-intellectual-property
DOFOLLOW
|
|
liars-club.html
http://www.skepticaleye.com/2010/05/liars-club.html
skepticaleye.com
|
13 | 15 | 1,180 |
Center for the Study of Innovative Freedom
https://c4sif.org/
DOFOLLOW
|
|
liars-club.html
http://www.skepticaleye.com/2010/05/liars-club.html
skepticaleye.com
|
13 | 15 | 1,180 |
Kant on Intellectual Property
https://c4sif.org/2026/02/kant-on-intellectual-property
DOFOLLOW
|
|
kinsella-troll
https://stephankinsella.com/2005/03/kinsella-troll
stephankinsella.com
|
60 | 59 | 609 |
Machlup Review of Fox, Monopolies and Patents, A Study of the History and Future of the Patent Monopoly
https://c4sif.org/2026/02/machlup-review-fox-monopolies-and-patents
DOFOLLOW
|
|
kinsella-troll
https://stephankinsella.com/2005/03/kinsella-troll
stephankinsella.com
|
60 | 59 | 609 |
Copyright is not a Verb; A Work is not “Copyrighted”
https://c4sif.org/2026/01/copyright-is-not-a-verb
NOFOLLOW
|
|
kinsella-troll
https://stephankinsella.com/2005/03/kinsella-troll
stephankinsella.com
|
60 | 59 | 609 |
Patent Suit Over NASA’s Mars Helicopter Blocked by Government Contractor Immunity
https://c4sif.org/2026/02/patent-suit-over-nasas-mars-helicopter-blocked-by-government-contractor-immunity
DOFOLLOW
|
|
kinsella-troll
https://stephankinsella.com/2005/03/kinsella-troll
stephankinsella.com
|
60 | 59 | 609 |
Zeidman, Why Libertarians Should Support a Strong Patent System
https://c4sif.org/2026/02/zeidman-why-libertarians-should-support-a-strong-patent-system
DOFOLLOW
|
|
kinsella-troll
https://stephankinsella.com/2005/03/kinsella-troll
stephankinsella.com
|
60 | 59 | 609 |
C4SIF
https://c4sif.org/
DOFOLLOW
|
|
kinsella-troll
https://stephankinsella.com/2005/03/kinsella-troll
stephankinsella.com
|
60 | 59 | 609 |
RSS
http://c4sif.org/feed
DOFOLLOW
|
|
kinsella-troll
https://stephankinsella.com/2005/03/kinsella-troll
stephankinsella.com
|
60 | 59 | 609 |
Kinsella Against Intellectual Property cover
https://c4sif.org/aip
DOFOLLOW
|
|
kinsella-troll
https://stephankinsella.com/2005/03/kinsella-troll
stephankinsella.com
|
60 | 59 | 609 |
Against Intellectual Property
http://www.c4sif.org/aip
DOFOLLOW
|
|
kinsella-troll
https://stephankinsella.com/2005/03/kinsella-troll
stephankinsella.com
|
60 | 59 | 609 |
Mansfield: Patents and Innovation: An Empirical Study
https://c4sif.org/2025/09/mansfield-patents-and-innovation-an-empirical-study
NOFOLLOW
|
|
kinsella-troll
https://stephankinsella.com/2005/03/kinsella-troll
stephankinsella.com
|
60 | 59 | 609 |
Richard Epstein’s Takings Political Theory versus Epstein’s Intellectual Property Views
https://c4sif.org/2011/11/richard-epsteins-takings-political-theory-versus-epsteins-intellectual-property-views
NOFOLLOW
|
|
kinsella-troll
https://stephankinsella.com/2005/03/kinsella-troll
stephankinsella.com
|
60 | 59 | 609 |
Kant on Intellectual Property
https://c4sif.org/2026/02/kant-on-intellectual-property
DOFOLLOW
|
|
kinsella-troll
https://stephankinsella.com/2005/03/kinsella-troll
stephankinsella.com
|
60 | 59 | 609 |
Desperate Patent Troll’s Plan to get Trump to Unblock his old patent applications to replace tariff games
https://c4sif.org/2026/01/desperate-patent-trolls-plan-to-get-trump-to-unblock-his-old-patent-applications-to-replace-tariff-games
NOFOLLOW
|
|
kinsella-troll
https://stephankinsella.com/2005/03/kinsella-troll
stephankinsella.com
|
60 | 59 | 609 |
Patent Troll Leigh Rothschild vs. Valve
https://c4sif.org/2026/02/patent-troll-rothschild-vs-valve
DOFOLLOW
|
|
kinsella-troll
https://stephankinsella.com/2005/03/kinsella-troll
stephankinsella.com
|
60 | 59 | 609 |
Desperate Patent Troll’s Plan to get Trump to Unblock his old patent applications to replace tariff games
https://c4sif.org/2026/01/patent-troll-hyatt-trump-tariff
DOFOLLOW
|
|
kinsella-troll
https://stephankinsella.com/2005/03/kinsella-troll
stephankinsella.com
|
60 | 59 | 609 |
Haman Nature: None of us hate patent trolls nearly enough. In fact, all of IP has serious flaws that need fixing – or abolishing
https://c4sif.org/2026/01/haman-nature-patent-trolls-ip-serious-flaws
DOFOLLOW
|
|
kinsella-troll
https://stephankinsella.com/2005/03/kinsella-troll
stephankinsella.com
|
60 | 59 | 609 |
“legacy fiat intellectual property rights” threatening bitcoin mining
https://c4sif.org/2026/02/legacy-fiat-intellectual-property-rights-threatening-bitcoin-mining
DOFOLLOW
|
|
kinsella-troll
https://stephankinsella.com/2005/03/kinsella-troll
stephankinsella.com
|
60 | 59 | 609 |
Law Student Ash Navabi: Copywrong? The Legal & Economic Case for the Abolition of Intellectual Property
https://c4sif.org/2026/01/navabi-copywrong-case-abolition-intellectual-property
NOFOLLOW
|
|
kinsella-troll
https://stephankinsella.com/2005/03/kinsella-troll
stephankinsella.com
|
60 | 59 | 609 |
C4SIF
http://c4sif.org/
DOFOLLOW
|
|
childs-epilepsy-treated-with-marijuana.html
http://www.skepticaleye.com/2011/12/childs-epilepsy-treated-with-marijuana.html
skepticaleye.com
|
13 | 15 | 1,180 |
Center for the Study of Innovative Freedom
https://c4sif.org/
DOFOLLOW
|
|
childs-epilepsy-treated-with-marijuana.html
http://www.skepticaleye.com/2011/12/childs-epilepsy-treated-with-marijuana.html
skepticaleye.com
|
13 | 15 | 1,180 |
Kant on Intellectual Property
https://c4sif.org/2026/02/kant-on-intellectual-property
DOFOLLOW
|
|
way-to-go.html
http://www.skepticaleye.com/2010/03/way-to-go.html
skepticaleye.com
|
13 | 15 | 1,180 |
Center for the Study of Innovative Freedom
https://c4sif.org/
DOFOLLOW
|
|
way-to-go.html
http://www.skepticaleye.com/2010/03/way-to-go.html
skepticaleye.com
|
13 | 15 | 1,180 |
Kant on Intellectual Property
https://c4sif.org/2026/02/kant-on-intellectual-property
DOFOLLOW
|
|
with-tony-tramontano-paul-comeaux-aug-1990-europe
https://stephankinsella.com/2009/11/hoppe-on-east-vs-west-germany-and-the-fall-of-the-wall/with-tony-tramontano-paul-comeaux-aug-1990-europe
stephankinsella.com
|
60 | 59 | 609 |
Machlup Review of Fox, Monopolies and Patents, A Study of the History and Future of the Patent Monopoly
https://c4sif.org/2026/02/machlup-review-fox-monopolies-and-patents
DOFOLLOW
|
|
with-tony-tramontano-paul-comeaux-aug-1990-europe
https://stephankinsella.com/2009/11/hoppe-on-east-vs-west-germany-and-the-fall-of-the-wall/with-tony-tramontano-paul-comeaux-aug-1990-europe
stephankinsella.com
|
60 | 59 | 609 |
Copyright is not a Verb; A Work is not “Copyrighted”
https://c4sif.org/2026/01/copyright-is-not-a-verb
NOFOLLOW
|
|
with-tony-tramontano-paul-comeaux-aug-1990-europe
https://stephankinsella.com/2009/11/hoppe-on-east-vs-west-germany-and-the-fall-of-the-wall/with-tony-tramontano-paul-comeaux-aug-1990-europe
stephankinsella.com
|
60 | 59 | 609 |
Patent Suit Over NASA’s Mars Helicopter Blocked by Government Contractor Immunity
https://c4sif.org/2026/02/patent-suit-over-nasas-mars-helicopter-blocked-by-government-contractor-immunity
DOFOLLOW
|
|
with-tony-tramontano-paul-comeaux-aug-1990-europe
https://stephankinsella.com/2009/11/hoppe-on-east-vs-west-germany-and-the-fall-of-the-wall/with-tony-tramontano-paul-comeaux-aug-1990-europe
stephankinsella.com
|
60 | 59 | 609 |
Zeidman, Why Libertarians Should Support a Strong Patent System
https://c4sif.org/2026/02/zeidman-why-libertarians-should-support-a-strong-patent-system
DOFOLLOW
|
|
with-tony-tramontano-paul-comeaux-aug-1990-europe
https://stephankinsella.com/2009/11/hoppe-on-east-vs-west-germany-and-the-fall-of-the-wall/with-tony-tramontano-paul-comeaux-aug-1990-europe
stephankinsella.com
|
60 | 59 | 609 |
C4SIF
https://c4sif.org/
DOFOLLOW
|
|
with-tony-tramontano-paul-comeaux-aug-1990-europe
https://stephankinsella.com/2009/11/hoppe-on-east-vs-west-germany-and-the-fall-of-the-wall/with-tony-tramontano-paul-comeaux-aug-1990-europe
stephankinsella.com
|
60 | 59 | 609 |
RSS
http://c4sif.org/feed
DOFOLLOW
|
|
with-tony-tramontano-paul-comeaux-aug-1990-europe
https://stephankinsella.com/2009/11/hoppe-on-east-vs-west-germany-and-the-fall-of-the-wall/with-tony-tramontano-paul-comeaux-aug-1990-europe
stephankinsella.com
|
60 | 59 | 609 |
Kinsella Against Intellectual Property cover
https://c4sif.org/aip
DOFOLLOW
|
|
with-tony-tramontano-paul-comeaux-aug-1990-europe
https://stephankinsella.com/2009/11/hoppe-on-east-vs-west-germany-and-the-fall-of-the-wall/with-tony-tramontano-paul-comeaux-aug-1990-europe
stephankinsella.com
|
60 | 59 | 609 |
Against Intellectual Property
http://www.c4sif.org/aip
DOFOLLOW
|
|
with-tony-tramontano-paul-comeaux-aug-1990-europe
https://stephankinsella.com/2009/11/hoppe-on-east-vs-west-germany-and-the-fall-of-the-wall/with-tony-tramontano-paul-comeaux-aug-1990-europe
stephankinsella.com
|
60 | 59 | 609 |
Mansfield: Patents and Innovation: An Empirical Study
https://c4sif.org/2025/09/mansfield-patents-and-innovation-an-empirical-study
NOFOLLOW
|
|
with-tony-tramontano-paul-comeaux-aug-1990-europe
https://stephankinsella.com/2009/11/hoppe-on-east-vs-west-germany-and-the-fall-of-the-wall/with-tony-tramontano-paul-comeaux-aug-1990-europe
stephankinsella.com
|
60 | 59 | 609 |
Richard Epstein’s Takings Political Theory versus Epstein’s Intellectual Property Views
https://c4sif.org/2011/11/richard-epsteins-takings-political-theory-versus-epsteins-intellectual-property-views
NOFOLLOW
|
|
with-tony-tramontano-paul-comeaux-aug-1990-europe
https://stephankinsella.com/2009/11/hoppe-on-east-vs-west-germany-and-the-fall-of-the-wall/with-tony-tramontano-paul-comeaux-aug-1990-europe
stephankinsella.com
|
60 | 59 | 609 |
Kant on Intellectual Property
https://c4sif.org/2026/02/kant-on-intellectual-property
DOFOLLOW
|
|
with-tony-tramontano-paul-comeaux-aug-1990-europe
https://stephankinsella.com/2009/11/hoppe-on-east-vs-west-germany-and-the-fall-of-the-wall/with-tony-tramontano-paul-comeaux-aug-1990-europe
stephankinsella.com
|
60 | 59 | 609 |
Desperate Patent Troll’s Plan to get Trump to Unblock his old patent applications to replace tariff games
https://c4sif.org/2026/01/desperate-patent-trolls-plan-to-get-trump-to-unblock-his-old-patent-applications-to-replace-tariff-games
NOFOLLOW
|
|
with-tony-tramontano-paul-comeaux-aug-1990-europe
https://stephankinsella.com/2009/11/hoppe-on-east-vs-west-germany-and-the-fall-of-the-wall/with-tony-tramontano-paul-comeaux-aug-1990-europe
stephankinsella.com
|
60 | 59 | 609 |
Patent Troll Leigh Rothschild vs. Valve
https://c4sif.org/2026/02/patent-troll-rothschild-vs-valve
DOFOLLOW
|
|
with-tony-tramontano-paul-comeaux-aug-1990-europe
https://stephankinsella.com/2009/11/hoppe-on-east-vs-west-germany-and-the-fall-of-the-wall/with-tony-tramontano-paul-comeaux-aug-1990-europe
stephankinsella.com
|
60 | 59 | 609 |
Desperate Patent Troll’s Plan to get Trump to Unblock his old patent applications to replace tariff games
https://c4sif.org/2026/01/patent-troll-hyatt-trump-tariff
DOFOLLOW
|
Frequently Asked Questions
How many backlinks does c4sif.org have?
The backlinks page for c4sif.org shows all individual inbound links discovered in our crawl of the web. Each backlink represents a hyperlink on another website that points to a page on c4sif.org. Use the filters to narrow results by dofollow/nofollow status, domain rating, or anchor text.
What is a backlink?
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Backlinks to c4sif.org include both dofollow and nofollow links. Dofollow links pass link equity (ranking power) to the target site, while nofollow links include a rel="nofollow" attribute that tells search engines not to pass authority. Both types contribute to a natural backlink profile, but dofollow links carry more SEO weight. You can filter by link type using the rel filter above the table.
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