I'm working on a Uber like service for home-made food in my spare time (apart form having a day job). http://crave.yorker.me
In the city I live there are large condos that are almost like small towns. The one I live in has 300 families and around 1200 people. Some time ago I thought of developing an online service that would allow such condos to build internal "yellow pages" listing services such as: home-made food, baby siting, car washing, hair stylist, nails, dog walking. The condo administration would pay a fixed monthly fee based on the number of units. Administration would also benefit with features like general announcements and the "condo agenda".
Let me know if this sounds interesting to you.