Here is a list of my pen pal resources and links!
-http://www.welovesnailmail.webs.com
-http://www.sendsomething.net
-http://indiefixx.com/2010/02/19/the-penpal-project/#comment-104019
If there are any other sites that you know of, feel free to comment me to let me know and I'll add it to the list!