How to describe yeastCulture? They are Mark Silver and Nick Hillel. They make stunning music videos for the likes of Nitin Sawhney and Jamie Cullum. In fact, they came up with the live visuals currently accompanying the aforementioned jazz-Hobbit on his North American tour. They can do it off-the-cuff too, and have VJ'd for artists as varied as the Beastie Boys and Matthew Herbert, and also at the Big Chill. They'll be pulling out all the stops as part of the BBC's Electric Proms here in London later this month, when they'll be VJing for three nights. They've just come up with their new website too, where you can see loads of exquisite examples of their work and a smattering of their personal politics. That's where you'll also be able to get the Yeast Book that they're giving away for free that features their images and ideas.