Some European countries [1] and even the UN [2] have recently begun to recognize internet access as a Constitutional right. If similar decisions were made here, one might be able to sue one's ISP for breaching that right... but maybe not, as long as there's free internet at public libraries. I'm also very pessimistic that SCOTUS will recognize internet access as a Constitutional right any time soon, what with the MAFIAA still at large.

[1] http://www.csmonitor.com/World/Global-News/2010/0309/Is-Inte... [2] http://www.theatlanticwire.com/technology/2011/06/united-nat...