The next big event in London to cover will be the so-called People's Assembly against Austerity on Saturday 22 June from 9.30 to 5pm in Central Hall, Westminster. See the article in this month's Standard which has also been turned into a leaflet for the occasion.
The Campaigns Committee will be there from 9.30 with leaflets and Standards. If you are able to be there some time during the day, email them at spgb.campaigns [at] worldsocialism.org
http://disinfo.com/2013/03/anti-austerity-march-hoped-to-be-the-biggest-protest-in-u-k-history/