You'd be forgiven for not having heard about Google, an internet search engine that never really took off. If you've not visited it before, here's the link. Alternatively you can Bing it, or Yahoo it, or Lycos it, or AltaVista it. I'd also suggest you Ask Jeeves, but the poor guy must be rushed off his feet serving new internet minutia to his billions of users. Here's a fun idea: imagine an alternate universe where Google was somehow the most popular search engine, and today celebrated the 50th anniversary of Doctor Who with an enjoyable game playable from its front page?