If you don't know this guy, you should. He's an Alliance blackbelt that has been tearing it up lately. Here's a vid for you to watch if you've got time. Its in Portuguese with Japanese subtitles so if you don't know either of those, you may want to watch it with mute on. Its an instructional covering guard and some advanced sweeps.
Here's a good set of instructionals from Jeff Rockwell. I'm not sure, but I think the rumor mill has it that Jeff just got his black belt. Here's his no-gi choke series:
I shot a few vids today covering a few side control escapes and basic chokes.
I found these videos a while back and thought they were great. Bjorn is a good source of information and also has a dvd out called "Position Brabo" where he covers a lot of set ups for the brabo choke. Here's some clips of him covering no giback control:
Here's some from Twister back control:
Another good source is Tapskilz, aka James Clingerman. Here's a few of his gi videos:
I'm a purple belt under Pedro Sauer and Steve Grantham. I've been doing this for a little while and I want to share what I have. Feel free to post comments.