Here is Garrick Schmitt's presentation for the IA Summit on consumer behaviour and Web 2.0 called Do Real People Really Use Tag Clouds?: Research To Help Separate Web 2.0’s Hits From Hype. It builds on the consumer behavior research AARF did late last year and provides some interesting insight into online consumer behaviour. Of particular interest is the information regarding importance of distribution, as I've always considered this to be a key issue to address. Also of interest is the growth in niche-ness.
By Carruthers via Aide-mémoire