I picked up on this recently and was slightly surprised not to have seen it in the events list here, if HU is as it says a coalition for social justice.

It's at Wednesday 9 May in the conference room in room 22, Springfield House, 5 Tyssen Street, London E8 2LY (part of the HCVS complex, please enter via the reception). The event will last from 7pm to 8.30pm.

They say that:

"There won’t be a formal agenda, but we will take time to reflect on recent initiatives and give a brief update on current projects (unemployed workers, Borough of Sanctuary, and our community learning conference) We also have our community training session scheduled for the 2 June. We will not bore everyone with speaches, but will break into an informal discussion (accompanied by refreshments) to chat about our aspirations for Hackney and the campaigns we are running.
"The meeting is open both to those who have supported us in the past, and people who would like to get involved in our current and forthcoming events. It will be a good way to draw a line under one campaign and give some thought to how we bring our communities together around issues like unemployment, transport and private tenants.
"Please come down and meet us, we have already shown that together we can make a difference!

"As we are will be provided light refreshments, please let us know if you are coming by dropping an email to HackneyUnites@btinternet.com."