An overview of McCain and Obama campaign sites for volunteers.

A look at some of the details of Obama's tech strategy, including text-messaging: "Obama's aides treasure data and contact information for voters in swing states, and text messages provide both. First, the campaign learns when and where a person joined up. So a student with a New York cellphone, who would otherwise be relegated to fundraising appeals, is reclassified for Nevada mobilization. Then, organizers directly reach them with text messages and calls. The campaign also asks supporters to forward text messages and grow the network."

And a video demonstration of the online Neighbor to Neighbor tool: