### FAQs, HOWTOs, and other information about VPNs
- [The VPN HOWTO and related HOWTOs](http://www.tldp.org/HOWTO/HOWTO-INDEX/networking.html#NETVPN)
-- [OpenVPN Forum, a german forum community about VPNs](http://www.vpnforum.de/)
- [VPNlabs, resources on network security](http://www.vpnlabs.com/)
### VPN standardisation
- [Amrita VPN](http://amvpn.sourceforge.net/)
- [CIPE](http://cipe-linux.sourceforge.net/)
-- [CloudVPN](http://exa.czweb.org/?view=cloudvpn)
-- [FreeS/WAN](http://www.freeswan.org/)
-- [GVPE](http://savannah.gnu.org/projects/gvpe/)
+- [cjdns](http://cjdns.info/)
+- [CloudVPN](http://freecode.com/projects/cloudvpn)
+- [FairVPN](http://minerva.netgroup.uniroma2.it/fairvpn)
+- [FreeLAN](http://www.freelan.org/)
+- [GVPE](http://software.schmorp.de/pkg/gvpe.html)
- [l2tpd](http://sourceforge.net/projects/l2tpd)
+- [n2n](http://www.ntop.org/products/n2n/)
- [Nest](http://www.targeted.org/nest/)
-- [OpenS/WAN](http://www.openswan.org/)
-- [OpenVPN](http://openvpn.sourceforge.net/)
-- [Poptop](http://www.poptop.org/)
+- [OpenS/WAN](https://www.openswan.org/projects/openswan/)
+- [OpenVPN](http://openvpn.net/)
+- [PeerVPN](http://www.peervpn.net/)
+- [Poptop](http://poptop.sourceforge.net/)
+- [P2PVPN](http://www.p2pvpn.org/)
+- [QuickTun](http://wiki.qontrol.nl/QuickTun)
- [SocialVPN](http://socialvpn.wordpress.com/)
+- [strongSwan](http://www.strongswan.org/)
- [VPMN](http://code.google.com/p/vpmn/)
-- [vpnd](http://sunsite.dk/vpnd/)
+- [vpnd](http://vpnd.linuxsys.com/)
- [VTun](http://vtun.sourceforge.net/)
- [Yavipin](http://yavipin.sourceforge.net/)