SandMonkey, a prominent Egyptian blogger who was briefly detained by Egyptian security forces, advocates that opponents of repressive regimes should store all their documents, writing, and information (e.g. email addresses and data on compatriots) on a cloud-based service located in a different country. That way, if a laptop is confiscated, there are no incriminating documents on it.
It's a fascinating view of an emerging technology, and of course, terrorists can do the same thing. As always, technology is politically neutral. But there is no doubt that bloggers and the technology of the Internet is changing politics, mostly for the good, by making it harder to hide graft, corruption, nepotism, and incompetence.