The NY Times has this article about how some people are surprised to find out about Fundrace.org, which names names and numbers about campaign contributions.
In Virginia, we have VPAP, which does something similar, if only for the state races. In fact, one of the links on the VPAP index page is "Who's Giving in Your Neighborhood?"
What I am waiting to see here in Bristol, and there was a little bit of it today, is an official list online or in the newspaper with all 1,900+ who signed the recall petition for the city councilmen on the Tennessee side. I've been expecting the Bristol paper to publish all the names in a big chart.