Infopirate.org

The one-stop service to protect your network and yourself from spammers, hackers, and to leave no tracks on the net.

http://www.anonymizer.com/ 

The easiest to use site when it comes to use the classic whois, traceroute, and the rest

http://www.all-nettools.com/toolbox 

Jani Myriam has founded the Transgender Resource Center to allow individuals a 'safe and anonymous environment where they can experiment with gender identity'. It appears that as SL moves into the mainstream awareness, it becomes less of a 'game' and more of a venue for people with common interests to get together and support one another.