LFT, a network (reverse) engineer's alternative traceroute. If you rely on traceroute then you need this! Path Analyzer Pro, a powerful graphical traceroute application based on LFT. WhoIs Analyzer Pro, another smart whois application available on Mac OS X and Windows. WP.cgi, John Bro's rewritten and improved version of the GeekTools Whois Proxy.
Spam Tools
blq - A perl script to query lists of spam and email abuse sources.
