Both The Guardian and Fistful of Euros have links and coverage of this morning's London bombings, and they'll have updates throughout the day, no doubt. The whole thing is horrific, quite obviously, and a sober reminder that Iraqi civilians aren't the only ones vulnerable to daily terrorist attacks. This story, though, is priceless. Bombs alone can't tear down a country.
Update: The Counterterrorism Blog, a group effort by several terrorism experts, has a bit more on the dispassionate analysis side.