So much for being the first to know , as Barack Obama's campaign promised Internet users who handed over their email addresses and cell-phone numbers in exchange for early notice of Obama's VP pick. "Multiple Democratic sources confirm to CNN that Sen. Barack Obama has selected Sen. Joseph Biden as his vice presidential nominee," CNN.com reports . A text message with the announcement will be sent to Obama's supporters sometime Saturday morning." BarackObama.com is still soliciting users' emails and phone numbers . Oh, and Twitter?Earlier today, users of the microblogging service were convinced Obama had picked Bloomberg . The Twitter users who got word of the real pick heard it through, yes, a Twitter account reposting CNN's story . Why didn't the campaign just direct people to sign up for CNN's breaking-news alerts ? Those seem faster.