Mash-ups are a truly wonderful thing. In the first place, no one’s going to bother starting with two websites that nobody likes, so you’re onto a winner from the start.

But the question remains, is the result greater than the sum of its parts or instead the bastard child of a drunken one night stand, and Wiki.FM seems to have firmly split the vote.

This latest musical mash-up combines the hugely popular internet radio site Last.fm with the hub of semi-dubious information that is Wikipedia…