Thanks to everyone who's written in over the past couple weeks. We read every email and try to post every good suggestion.
Speaking of which, here's a great post from Scott Hawksworth on using search engines smartly. Rather than just listing out some good search engines, Scott explains how to use operators properly (i.e. stingy AND scholar) and includes links to other sites with further information.
Also, if data visualisation is your cup o'tea take a look at this great blog that Scott references, Information Aesthetics.