I came across an interesting article in SEOmoz, which claimed that if an URL was tweeted enough, it rose in the SERPs rankings. Here's the article, which goes into some detail:
Anyway - I was wondering if people would like to participate in a little experiment.
We each post one wizzley page that we would like tweeted, and then everyone tweets all the pages posted in this thread, to see if it makes any difference. The idea being that each page gets as many tweets as we can manage so that it features on Topsy.