Comcast monitoring Twitter, blogs and other social media

Have a complaint with cable company Comcast? Don't bother calling their helpline: Instead write a blog entry or, better still, send a 'tweet' or two via Twitter threatening to "expend significant energy over the next three weeks trashing Comcast." That's the lesson taught by TechCrunch founder and co-editor Mike Arrington, after his Comcast broadband connection went down for 36 hours.