What is web proxy?
- Check out this wiki: http://en.wikipedia.org/wiki/Web_proxy

Current list:

http://www.filterproof.com/
http://www.fiwh.net/
http://www.proxysectors.com/ - Tested on MySpace and Xanga

According to the owner all web proxy sites above is able to access MySpace and Xanga.

+++ Please contact the respective site owner if you have problem accessing it.