No review from me today, but here's a link to a London Review of Books essay by James Harkin, reviewing – from a somewhat sceptical perspective – three books on cyber-democracy:

• Death to the Dictator!: Witnessing Iran’s Election and the
  Crippling of the Islamic Republic by Afsaneh Moqadam
  Bodley Head, 134 pp, £10.99, May 2010, ISBN 978 1 84792 146 8
• The Net
  Delusion: The Dark Side of Internet Freedom by Evgeny Morozov
  Allen Lane, 408 pp, £14.99, January 2011, ISBN 978 1 84614 353 3
• Blogistan:
  The Internet and Politics in Iran by Annabelle Sreberny and
  Gholam Khiabany
  I.B. Tauris, 240 pp, £14.99, September 2010, ISBN 978 1 84511 607 1

Harkin argues that social networking is political activity, with all the pitfalls and dangers that implies. And certainly not a panacea for the absence of democracy.