I've added new links that allow you to instantly link any post on Facebook, Reddit, or Digg. If you click on the icon it'll take you to the corresponding site so you can post about it or submit the link.
How does this help the forum?
Alot of people visit these various sites (Facebook, Reddit, etc.) and that helps get TGT out there to attract more posters and people to the community. It also will give good link credit to that particular thread and help it get to the top of search rankings. So if you feel you want more people to see your thread(s) then by all means use these tools to your advantage. Ideas include classifieds, polls, meets, etc.
Digg.com is a website that you can submit links to and share them with other people that visit Digg.com; it ranks the sites on it's list via the number of times that particular page has been submitted. Digg - All Topics - The Latest News Headlines, Videos and Images if you want to visit the site and see what it's about.
Facebook is rather obvious if you use it ... it'll link the URL to your post and allow you to easily add it to your wall. Welcome to Facebook - Log In, Sign Up or Learn More if you aren't on Facebook.
Reddit.com is a popular link sharing site kinda similar to Digg but it's more of a fluid site. You can submit URLs to be listed on Reddit.com that you feel are worthy of sharing across the net. reddit: the front page of the internet if you want to check it out.
Twitter is a well used website for short and simple updates. You can follow the site and other people / groups / companies to catch the latest on new stuff, news, and other insights. http://www.twitter.com if you want to get setup with them.