One of political journalists’ favorite research methods is poring over the finance reports of prominent local candidates to see where their financial support is coming from. Usually, it’s to establish a connection between those running for office and the demographics that are backing them, like Vince Gray’s large financial support from taxicab drivers. Other times, it’s just for fun, like finding that Ward 1 Council candidate Bryan Weaver got a $500 donation from Ben Cohen of Ben and Jerry’s fame. One of the more interesting contributions in yesterday’s Office of Campaign Finance reports was a $2,000 donation from Facebook founder Mark Zuckerberg to the campaign of Mayor Adrian Fenty. Perhaps Zuckerberg can give the Mayor some tips on how to increase his reach on the ubiquitous social networking site: Gray (2,830 friends) currently has Fenty (1,354) more than doubled up when it comes to popularity on the ‘book.