Make a tag cloud from your tweets. Here's mine. I appear to do a lot of trying, watching, wondering, listening, waiting and going. Blog, train and tea also feature highly. Sums me up really.
Andy Pipes has done a really cute Twitter mash-up. It maps the latest food-related Twitter tweets against recipes from Google Base and the C4 Food website. A tweet returns relevant recipe/meal suggestions. As if I wasn't hungry enough already!
Trulia (US real estate search people) and Stamen Design (they of the Oakland crime map) have collaborated to produce a beautiful map mash-up of property growth in the US. The map itself is a lovely thing to click around, but what makes it really interesting is the way the blog links it to local historical and civic information. Fascinating for people moving to an area - the heritage of your local area is compelling. And a brilliant resource for local (and not so local) historians.