According to data just released by the Minnesota Secretary of State, Al Franken has gained a net of 43 votes on the first day of that state's recount process. Norm Coleman had a lead of 215 voters over Franken in Minnesota's certified, pre-recount tally; that margin is now 172 votes.

Minnesota reports that it has thus far re-counted 15.49 percent of its ballots. If the first day's results are indicative of the pace that the candidates will maintain throughout the recount process, Franken would gain a net of 278 votes over Colmean, giving him a narrow victory. For any number of reasons, however, the results reported thus far may not be indicative of future trends [...]

the precincts that were re-counted today were slightly redder than average, having favored Coleman by an aggregate of 3.3 points during the initial count. No votes have yet been re-counted in Minneapolis (out of more than 200,000 cast), although about 43,000 have been recounted in St. Paul (out of around 140,000 cast on Election Day). Another city which has not yet reported any results is Duluth, traditionally a Democratic stronghold.

Then there's the matter of the challenged ballots:

Challenges can occur to ballots that had previously been deemed to be legal, in which case those votes will be deducted from the opponent's total. Coleman has thus far challenged 115 ballots and Franken 106. However, based on local reports, many or perhaps most of the challenges are frivolous, and are unlikely to be upheld upon review. Thus, the candidate who has challenged fewer ballots probably stands to gain ground once such challenges are adjudicated.

Some of these may be frivolous, but some not so much. Follow the link for pictures of various challenged ballots, and take the quiz courtesy of Minnesota public radio.