Myspace and the Commission on President Debates announce a partnership, Paris Hilton responds to McCain campaign's video, McCain continues the "celebrity" attacks, and Republican Twitter movement is hardly a movement at all

It's been a while since I've checked in on our charts tracking how the campaigns are doing on the web, and even though we're now firmly headed into the August doldrums before the national conventions, some interesting trends are worth noting. In a word: Obama keeps adding friends, but McCain has been gaining traffic. And Bob Barr seems to have some real grass-roots support...

In today's Daily Digest, we rather exhaustively recap Netroots Nation and RightOnline, the blogger conferences held this past week and weekend in Austin, Texas.

I'm sitting in the Austin airport waiting to board my Southwest flight to Houston and on home to BWI after a great conference at Netroots Nation. Who sits down two rows away but Libertarian presidential candidate Bob Barr. I went on over to ask what anyone would ask: do you Twitter for yourself?

Bob Barr, who served in Congress as a Republican but is now registered with the Libertarian Party, today formally announced his entry into the Presidential race, and as the only candidate for his party’s nomination who has actually won a significant election, will likely be the Libertarian candidate this fall. Can Barr harness the energy from the libertarian-minded Ron Paul campaign and mount a disruptive third-party run? Or is he doomed to receiving a miniscule portion of the popular vote, as has been the case with past Libertarian presidential candidates?

Update: This post has been changed to clarify the paragraphs speculating on the acquisition of the Ron Paul list.

A Facebook group tries to recapture the Spirit of '92 but gets obsessed with privacy instead; another Facebook group finds a million people who dislike George Bush; Tom Hanks posts a video in support of MySpace; Lamont Williams, where art thou?; Craig Newmark also supports Obama; Ron Paul publishes a book; and Bob Barr is set to run for president and launches a YouTube channel to prove it.