Are you an all-celebrity kind of reader, or do you like a bit of politics too? Or, do animals and tech more of your thing? GE has taken over on Buzzfeed today, with an Efficiency Machine, created by Buzzfeed Labs, that lets you tweak the content to your own preferences. Choose your mood (funny, normal or serious), fine tune what kind of content you want (tech, politics, celebrity, etc.) and then factor in other features (such as "trashy" or "geeky"). Activate, and the page will recalibrate with your preferences. Oddly, there don't appear to be any filters to remove advertising.