uk hemp expo 2007 is on this weekend (5,6,7th May)
HEMP EXPO 2007: 5,6,7th MAY, Telford International Centre (10am-6pm).
Please note: there is no cannabis march or festival planned for this year in london but there are protests against cannabis prohibition, including marches and other events, going on in over 200 cities worldwide as part of the Global Marijuana March
More at: schmoo on the run