Just a day after I posted about John Edwards texting campaign, a friend told me that Edwards was now using Twitter, a social networking tool that enables users to let friends and strangers know what they're doing.

Edwards has made 68 friends at Twitter to date, and has updated his status four times since January 8. The cool thing about Twitter is that it allows your friends to receive your updates via IM, mobile text, or just by making you a friend and viewing your updates on their own pages.

For instance, if you befriended John Edwards on Twitter yesterday, you would have received this message via text or IM:

"In Seattle. In about an hour, I will participate in a recorded interview with Chris Matthews, which will air on tonight's Hardball (5/7pmET)"

Not to be left out, it appears that the Barack Obama camp has also set up a Twitter profile, but he currently has made no friends there and has 0 updates on his page.

It'll be interesting over the next couple of weeks to see if any of the other candidates start to use Twitter to gain grassroots support. I'll keep searching for other candidates who have set up profiles at Twitter and provide updates on how they're doing at making friends.