There's also a walled memorial garden in Hillsborough Park (Middlewood Rd, Leppings Lane side of ground). Not sure about posting links, but just google it.
I lived in Sheffield at the time, had friends who invited LFC fans into their homes etc and who were greatly affected by it, feeling a sense of guilt that this had happened in their city. No-one had any time for the SYP after the miner's strike.