At least two politicians - John Edwards and Rick Santorum - have launched text message campaigns.

Both candidates are inviting supporters to register online in order to receive text messages from them. Edwards’s supporters can sign up at his One America site; Santorum’s can find information on how to sign up on his Web site, although at present Santorum’s SMS efforts are targeted at women’s outreach efforts. Santorum and Edwards have both said that they plan to use the technology to send issue-based messages.

While proponents of SMS argue that it is a good way to maintain ongoing contact with busy constituents, some analysts worry that the strategy may prove to be too expensive to attract anyone other than core supporters. But if it is successful for Edwards and Santorum, SMS technologies may be used in get out the vote efforts, and citizens may even be able to donate to campaigns via their cell phones.

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