Honestly dont think the riots are race related, anyone trying to argue they are, are just being flammatory (i.e the media and the rioters themselves).
Tottenham has a very ethnically diverse population, the looters were of all colours (including white). Most of the youths were likely the bored, unemployed scrotes of the community which lets face it, Tottenham has alot of. Lack of cohesion and funding in the community does not help.
Added to that the man that was shot (and rightly shot if he shot at an officer) was apparently someone high up in the Broadwater estate criminal social circle
, which must have contributed to the criminal scrotes and oppurtunsits coming out from the rocks they were hiding under.