I go to the memorial every year at St Peters outside the g-mex.
The main campaign website with all info on events
http://www.peterloomassacre.org/campaign.html
Maxine peake John Henshaw and Christopher Ecclestone show up mostly and do readings and the Poem.
The campaign are pushing for a permament memorial, and have funded one which I think is being unvieled this aniversary the council have dragged their feet though over it.
There's a permanent memorial being built outside Manchester Central as we speak.