I'm not trying to diss your assignment at all, but I just wonder if AbFab is a bit one- dimensional for an assignment like this? It's really only media, fashion and consumption that the series satirised and its real bite came from strong acting and characterisation. And apart from the fashion, surely AbFAb is fairly timeless and could be set anywhere from 1980s onwards?
Also I don't know that there are many websites that will analyse political movements of the 1990s in great depth.... You might have to read books. After all, the 90s saw the demise of Thatcherism and the rise of New Labour... It also saw recession in the early 90s. It's not an easy decade to characterise politically.
Like I say tho, I'm not trying to criticise you, just give an honest response to your question.