Yesterday it was brought to my attention not all of my friends who support Obama have signed up for his text messaging list. Subscribers receive short messages roughly once a week or less, related to major announcements in the campaign, primaries, and media appearances. You can sign up online, or by texting GO to OBAMA (62262). I first subscribed after seeing it advertised at his College Park rally earlier this year. The campaign website also offers a variety of ringtones, wallpapers, and suggests high-volume users should follow him on Twitter.