Interplay put Black Isle Studios out to pasture on December 8, 2003. This resulted in the cancellation of Van Buren, the third game in the Fallout series. If you see anything from BIS from then on, it is simply an imprint like the book industry uses.
Black Isle was originally founded in 1998 by Feargus Urquhart, who left in April 2003 to found Obsidian Entertainment, considered by many to be BIS' successor.
This list is of games published or developed by BIS. Right now it's just titles as listed on the BIS website (<http://www.blackisle.com/>, and still up, amazingly). I'll be detailing the list sometime soon, hopefully. /msg me if it's been too long or if you have more info for the list.