Beware: low flying web2.0 memes may strike at any time! We’ve been regaled relentlessly on ‘social networking’ and the ‘wisdom of crowds’, and there’s certainly something to it – it wouldn’t be raking in the investment cash otherwise. But will searches based on human recommendations ever knock the Googles and Yahoos of the world from their perches? Maybe eventually, but I’m not going to hold my breath just yet.