I have added some paragraphs covering changes to social housing management in the UK since 1979 - Right to Buy, Large scale transfers to HAs, ALMOs, Decent Homes, Choice Based Lettings. There is some overlap with the Council Housing entry, but if someone searched on social housing and arrived at this UK entry I hope the extra material will provide some help. Seeing the first item above, maybe more to say on ASBOs and tenancy agreements?