Bigfoot Forums
The Bigfoot Forums (also known as the BFF) is an Internet discussion board accessible at bigfootforums.com. It was started on February 8, 2002, by Brian Brown in response to the lack of bigfoot-related forums with threaded conversations and logical categorization of content. The BFF was placed under the auspices of the Bigfoot Information Project (BIP) in March 2004.
Calling itself "the Web's most popular one-stop shop for sasquatch talk," the BFF is thought to be the largest discussion of its kind found on the web today. As of January, 2009, it had over 500,000 posts in over 24,000 threads and more than 10,000 members. It regularly receives more than 2,500 visits a day.
UPDATE:
The BFF is now run by a group overseas and has both free and paid content.