Citizen reporters helped traditional media in reporting from the London bombings. Camera phones, photo sharing sites and blogs enable people on the scene to share their experiences immedeately to media consumers thirsting for information, especially valuable on an event like this where traditional media had restricted access to the locations and could take very few pictures of their own.
Another way of describing the event is the “7 July 2005 London bombings” page at Wikipedia, already a massive resource for information about what happened and how things progress. It is further evidence to the growth of open source, collaborative ways of collecting and distributing information, as an addition to traditional sources of information, such as media and governmental/official sources. Flickr, Wikipedia and Technorati are already up there with BBC and for example the offical London site as places we turn to to become informed.