Like sister SeekingAllah'sMercy said, everyone with Youtube IDs should try to inbox or write on "famous Islamic channel" walls. Especially the ones in the UK.
OK...contact the universities..what about labor unions...what about high schools...every street coner..what about standing by the subway stations..outside major intersections...who is walking around with a pen and petition slip..who is making the phone calls to the citizens...is there a call center..can you make a simple call center...get my drift...
Tell me why there are so few..is it that many Muslims do not know about him? Is the petition being sent around? Who is making the videos...someone go out side his detention center make a video and ask random people why he is being held.