Hmmm, that will help a bit
imo, twitter has become somewhat of an echo chamber, with folks on both sides following other folks with the same opinions. Seriously, how many times does '________ is the Debbil!' have to be retweeted? That gets irritating and I've pretty much checked out of politics until it's time to do the dirty deed and vote for the ones less likely to kill us all.
Now that being said, *targeted* tweeting can be very effective to get a point across. Whether good or bad, a good old school newsgroup flame, name, and shame (or praise from time to time), can get results with creative hashtagging and mentions to potentially interested parties. I'm currently having a lovely time trolling... baiting... having a public conversation with several local politicians and various government agencies (yeah wtf El Reg about that anyway?).
Moving on, I really don't see how Twitter can monetize unless they start charging for a organization's account/presence on twitter - make them pay for their targeted advertising etc. I mean twitter is both big and small at the same time, essentially it's a public messaging client with a much larger reach across the world. Difficult.