Segue minha contribuição!
* OWASP (Webgoat Project)
* testasp.acunetix.com
* test.acunetix.com
* hackme.ntobjectives.com
* Foundstone - A division of McAfee
* Foundstone - A division of McAfee (hacmecasino)
* Foundstone - A division of McAfee (hacmebooks)
* Foundstone - A division of McAfee (hacmetravel)
* zero.webappsecurity.com
* Hacker Test: A site to test and learn about web hacking
* Information Security Consulting - Maven Security Consulting, Inc.
* ha.ckers.org
* demo.testfire.net
* scanme.nmap.org
* HellBound Hackers
* OverTheWire - Wargames
* roothack.org
* Heorot.net
* wocares.com
* how2hack.net
* Badstore.net: See how the hackers think. Download this demo.
* www.gat3way.eu
* ethicalhack3r
* suif.stanford.edu
* www.rootcontest.com
* Damn Vulnerable Linux - The most vulnerable and exploitable operating system ever!
* OWASP
* crackme.cenzic.com
* www.intruded.net
* Re-Directing
* Com.org - Only the best links ...
* HackersLab
* smp Capture The Flag (CTF) 2010 Hacker Olympics
Att,



