Topps released a YouTube video focusing on sketch cards -- sort of an introduction to 'em. Here's the link.
I'm not one of the featured artists in the video, but you can see one or two of my cards in the background, and a great interview with my pal Michael Duron -- I love his toony cards. :)
Also, SlashFilm.net gave some big lovin' to the new Indy set. Lots of samples from different artists. Go check it out: LINK