Wish I had the link I followed months ago, but it showed a project that was inside, with long plastic tubes, about a foot in diameter, filled with water and growing algae. The tubes were arranged horizontally and stacked very high, showing how vertical arrangements could produce a lot of output and not require so much surface area.
Here are some links referring to container grown algae. I make no recommendations as to any of them. There are many more companies not listed here.
http://www.springerlink.com/content/w160203853226261/
http://www.inhabitat.com/2009/09/08/algae-covered-buildings-to-boost-biofuel-production/
http://www.greencrudeproduction.com/solution.html
http://www.celsias.com/article/oil-algae-new-one-step-process/
http://earth2tech.com/2008/03/27/15-algae-startups-bringing-pond-scum-to-fuel-tanks/
http://www.coastalbiomarine.com/products.htm
http://bulktransporter.com/management/tank-truck/hybrid_algae_testing_0207/
http://www.technologyreview.com/Biztech/20319/page1/
http://www.santafenewmexican.com/PrintStory/New-energy-frontier