Along with the Official Eidos Tomb Raider Forum, run by the developers, many fan sites have forums and message boards for their visitors. Some of the more popular are listed below.
Other sites with message boards and chatrooms are listed in my Links Directory. There are also forums devoted especially to the Level Editor. See my Tomb Raider Level Editor links.
Wiki sites are collaborative projects that invite users to create and edit their content. "Wiki" itself is an acronym for "what I know is...", as well as the Hawaiian word for "quick". The most popular wiki is probably Wikipedia, which has subsites in many languages and covers a staggering array of subjects.
In October 2012, a small group of Tomb Raider fans joined forces for Extra Life, a video gaming marathon to benefit Children's Miracle Network Hospitals. Together we raised over $1,000 to benefit hospitalized children. The entire worldwide event netted over $2 million!
We plan to do it again this year and hope
you'll join us. Extra Life 2013 is scheduled for November 2. If you'd like to be a part of Team Tomb Raider Community, send me an email and I'll keep you informed as the event approaches. For details about the event, please check out my blog posts here and here, and visit Extra-Life.org.