Given the fundraising success of the Obama campaign and the reach of the liberal blogoshere, many people assume progressives have the advantage when it comes to harnessing new media tools for political organizing.

But there is one service where conservatives dominate: Twitter, the free micro-blogging social network where users tell their friends what they are doing via "tweets" of 140 characters or less.

Conservatives as a community are currently better connected than progressives on Twitter through their use of hashtags. Hashtags are a code users paste inside each tweet which tags posts that are relevant to specific audie....