Facebook's privacy overhaul suggests it's looking nervously over its shoulder at the rise of Twitter... Facebook has just announced that it’s trialling a raft of potential changes to its current privacy settings, including allowing users to make their status updates and other contributions visible to all and sundry, rather than just people in their particular network. And if you think this sounds familiar, that’s because it’s basically allowing users to do exactly what Twitter users do – i.e. post an update on what sandwich they’re eating for lunch for the benefit of anyone with a functional search engine and an appetite for mundane trivia. So it’s clearly worrying about the threat from the latest Big New Thing – although the fact that it’s trying to reinvent itself suggests it’s trying to avoid the mistakes made by MySpace… - Dan Smith