Twitter is the current big thing in social media, and a vaunted tool for political communications. This article is a good examination of how to use Twitter effectively to advance political initiatives.  It includes great case study analysis.
“The Missouri Accountability Portal, arguably the most comprehensive of all state-level spending data sites, is a model. Americans for Tax Reform praised the site and British Tory Party leader David Cameron even promoted it as a "powerful tool" for fiscal austerity at his party’s spring conference in April, according to the Manchester Guardian.”
“‘Any problem of overspending that could be passed on to cigarettes could be fixed by just spending more wisely,’ he (Grover Norquist) said. ‘The problem with the tax increase isn’t just that it’s a tax increase… it is that the tax is what you did instead of reforming state government.’”