I thought about something similar (well, at the level of the forum of course, without the services, but the functionality and using the forum to organize many can, just not automated), but realized that our residents (well average such people, pensioners and young is quite wealthy) no one needs it all. It is much easier paper ads at the Elevator. Some, I'm sure, Internet is not needed.
So IMHO, things like portal/forum home for example will need home where a lot of young, progressive people. The first thing that comes to mind — Dorm students, but they often already have some solutions. Perhaps some new homes with lots of young families — when moving still a lot to learn, easier to cultivate a habit to visit the resource home will be.