Note: BoardTracker is no longer in service.
What is BoardTracker?BoardTracker is a search engine dedicated to only sifting through forums and online message boards. It's a highly targeted search engine and brought back relatively good results.
How To Use BoardTrackerYou can simply navigate to the main BoardTracker home page and type in a term. To the right of the main search bar is a drop-down menu of categories; you have the option to narrow your search using this menu, or you can browse the categories directly below the search bar as well. In addition, you can also check out BoardTracker's Advanced Search options.
Searches are relatively good; for example, my search for Bill Gates predictably returned quite a few results. Each result has the icon of whatever particular message board or forum that result is from (if it has one), date the message was orginally posted, how many replies it's had, how many views, the poster's name or nickname, and a very brief annotation. I think a big improvement here would be to have the actual board or forum name very prominent in the search results as well.