Technological advance  

Zach Exley (of MoveOn fame) is Kerry's new online director. I can't speak to the legality of the move, which Republicans are criticizing because it implies a connection between MoveOn and the Kerry folks (a connection which seemed pretty obvious before...), and I expect the Supreme Court will rule on the whole 527 issue before too long. But this is a great move from the standpoint of online organizing. So far, the Kerry campaign seems to be viewing the internet as a fundraising medium, but Exley has experience with the kind of grass roots organizing and online mobilization that brought out the base for the primaries. This will make the difference in November.