THE FILTER This site uses artificial intelligence to select music and movies tailored to a visitor's tastes.
WE7 A music-streaming site that embeds advertisements at the beginning of songs, allowing users to download tracks at no cost.
THEMEMORY A social network to honor the dead where loved ones share memorial wikis.
GABBLE Still under wraps, this is described by Gabriel as "a new visual language for the Web." Stay tuned.
A version of this article appeared in the November 2008 issue of Fast Company magazine.