Almost zero cost for a realtime communication network literally millions can partake of.
When Santelli spoke his famous Quote on CNBC I happened to be monitoring Twitter's Conservative hashtags (#TCOT and others)... you could literally see a digital tsunami building in those first few hours afterward.
The #TCOT monitoring page started lagging to the point it was almost an hour behind on updates and Twitter actually got overloaded not long after that.
But then once things settled down you could see the Conservative hashtag activity was up nearly triple and it was all about organizing Tea Parties all over America. And it stayed that way for months afterward...