Google maps

Wow is this thing great or what? Not only is it possible to get directions to somewhere you have never been before but you get to see what it looks like. Bravo Google.

Wikis

Wikis, great idea, but like anything else only as good as who's scribbling stuff on them. I think it is likely that Wirginia Maixner looked places other than wikipedia for neurosurgery tips this week. She may have used it to find out which Simpsons episode carried a story about conjoined twins though.