It took just a few hours, but at the moment it looks like the same grass-roots army that has been showing up online and on the streets for Barack Obama has also swung into gear on Eventful.com's new Politics page.

Yesterday, I reported on the launch of the site, which aggregates news of upcoming political events around the country, and also enables anyone to post or join in a "demand" for a particular political figure to appear in their town or city. Hillary Clinton was leading by a landslide, 581 to 19 for Obama (and just 5 for John Edwards), but now the freshman Senator from Illinois has rocketed ahead. (In fact, the numbers keep rising as I type!)

The explanation? Last night, the moderator of Obama's MySpace page, Joe Anthony, added a button for Eventful. And the folks at the Facebook group Barack Obama (One Million Strong for Barack) started talking about it too. So far, the top cities for Obama are Seattle, Phoenix, Philadelphia, Portland and Minneapolis. Clinton's top cities are Los Angeles, Seattle, San Diego, Phoenix and Houston.

John Edwards, Mr. Savvy about Technology and Social Networks, so far has just 6 people seeking his presence...