I see the San Francisco Chronicle website has provided a nifty feature.
Search the database below to see who has contributed money to the campaigns supporting and opposing California's Proposition 8, which would ban same-sex marriage.
To perform a narrow search, enter a person's name below and click the "Search" button. For a broader search, select from one or more of the drop-down menus to see a list of contributors by state, city and ZIP code.
Just think of all the fun they will have:
Create your own black list
Sort by zipcode to decide which neighbors' houses to egg