Ross Douthat makes two crucial points.
#1 - Online success is less about the technology, and more about the ideas and motivation.
[T]here’s no necessary connection between online organizing and liberal politics. The Web is just like every pre-Internet political arena: ideology matters less than the level of anger at the incumbent party, and the level of enthusiasm an insurgent candidate can generate.
#2 - Unfortunately, Republican politicians still have very little in the way of real ideas...
If liberals are feeling disillusioned, though, their right-wing imitators may be ripe for an even greater letdown. The Obama administration has at least gone some distance toward enacting an agenda that the net-roots left supports. The “right roots” activists are rallying around politicians who are promising to shrink government without offering any plausible sketch of how to do it.
#1 is about winning the battles (elections) & #2 is about winning the war (better government). Achieving #1 without addressing #2 is an establishment-protection racket. Republicans need to insist on more than the usual tax and spending rhetoric.