A social network for hosting services
Despite the fact that most medium and big business use cloud hosting services like google, amazon and microsoft. The world of small businesses is fine with smaller and more convenient hosting providers, with which a more direct support connection can be established.
However there isn't a platform where small service providers and small business can meet each other to settle deals, a social network aimed at these sector might be worth a trial.
There are communities like LET that should be taken as an example for what kind of interfaces a web based social network might want to provide to simplify discovery and good offers between participants.