Solazyme (http://www.solazyme.com/) is getting ready to begin producing Soladiesel ™ .. this is an algal biodiesel where they've made it conform with existing standards for diesel fuel.
Algal biodiesel is different from food-derived biodiesel in that food is not being diverted to make fuel. In todays environment with food riots around the world, due to rising food prices, which may be due to food being diverted to fuel production, this is a very good thing.
