Here are links to a few videos of note:

The WMD’S, "Tribe"

Jerry Garcia and David Nelson working on a Levi’s commercial

The Best of the Jammys, Volume 2 – Montage

Yonder Mountain String Band, "Cuckoo’s Nest"

Michael Travis sings Neil Young’s "Pocahontas at the 2007 Conscious Alliance Toy Drive

Railroad Earth- "Head," Berkfest 2002

Sound Tribe Sector 9, High Sierra Music Festival 2003

Phish and Jeff Mosier- The Bluegrass Sessions

Sharon Jones- Jam Cruise 6 Pool Deck