When they write the history books in the 24th century (or, I guess, when they fashion the downloadable history hormone arrays in the 24th century) they will note that the Second American Civil War began with online petitions. Gawker says that people in a number of mostly southern states have signed petitions at Whitehouse.gov, requesting that the government peacefully grant them secession:
Petitions for secession filed from Louisiana and Texas have already received well over 10,000 signatures. Per the website's own rules, petitions that garner 25,000 signatures or more within 30 days require a response from the Obama administration.
Similar petitions from Alabama, Tennessee, and, interestingly, Oregon, are also gaining traction, with each receiving thousands of supporters over the weekend alone.
This is exactly how the first Civil War started: A bunch of pissed-off couch warriors got together on Ye Olde Telegraphhhe Systeme and Morse-coded their strongly worded (but still polite!) letters of resignation. Hang tough, ye Johnny Rebs. The south (and Oregon!) shall rise again.