Corporate websites
- @ Mediaservice.net official website
http://www.mediaservice.net/ - Core Security Technologies
http://www.coresecurity.com/ - Immunity, Inc.
http://www.immunitysec.com/ - iSEC Security Research
http://isec.pl/
Research
- 0xdeadbeef dot info
http://www.0xdeadbeef.info/ - Michal Zalewski
http://lcamtuf.coredump.cx - Solar Eclipse
http://www.phreedom.org/solar/ - The Hacker's Choice
http://freeworld.thc.org/welcome/
Tools
- guess-who
http://www.segfault.net/research/SSH/ - hping2
http://www.hping.org/ - john the ripper
http://www.openwall.com/john/ - Metasploit
http://www.metasploit.com/ - Nmap
http://www.insecure.org/nmap/ - nikto
http://www.cirt.net/code/nikto.shtml - nessus
http://www.nessus.org/ - p0f2
http://lcamtuf.coredump.cx/p0f.shtml - paketto
http://www.doxpara.com/paketto/ - scapy
http://www.cartel-securite.fr/pbiondi/scapy.html - unicornscan
http://www.unicornscan.org/ - xprobe2
http://xprobe.sourceforge.net/