Delegate Counter

Political junkies looking for a time waster today should check out Slate's Delegate Counter tool.

Simply plug in a hypothetical percentage of the vote for Barack Obama and Hillary Clinton for the remaining Democratic caucuses and primaries, and the counter calculates the delegate totals.

Of course, the counter doesn't factor in superdelegates -- but it will tell you how many the candidate needs at the end of the day to grab the nomination.