Legitimate privacy concerns or embarrassing photos from last weekend's office party means that Facebook users often want to untag images of themselves on mass - something which Facebook deliberately makes difficult.
Google is about to let users enjoy the magnificence of the Great Barrier Reef from the comfort of their own home with the Catlin Seaview Survey. The project is a collaboration between Google, the University of Queensland and the Catlin Group and will act like Google Street View for underwater life.
Twitter passed the 500 million registered users mark yesterday, February 22, and is currently adding new accounts at a rate of about 10.7 per second. Twitter user number 500,000,000 is...@JanickiPiotr.