I've seen a number of sites that let you directly download videos from sites like Google and YouTube, but KeepVid beats the rest with its nice design, easy-to-remember URL, and its ability to download not only from the big guys but also with about three dozen other video sites like iFilm, Vimeo, Putfile, Revver, and MySpace. It's also got a handy FAQ that offers some help in dealing with those pesky FLV files and streaming (mms://) videos.

[Via Lifehacker]