Thought you might want to check out jazz site JazzCorner's JazzVision, which is the first videosharing site dedicated solely to jazz and blues videos for users to watch and even upload. Sign up is free if you want to join. Currently there are more than 1,200 videos, such as this one of the Dave Holland Quintet doing live at the 2002 Newport Jazz Festival with Robin Eubanks, Billy Kilson, Steve Nelson, Dave Holland, Chris Potter. You can search or browse by artist,instrument, groups, type of jazz, or even festivals (although RIJF hasn't uploaded any....).