Moto Guild Philly
I don't know if anyone has heard of these, but there's a few of them around the country. One just popped up in the Philly area (in Bridgeport) and I checked it out this past weekend.
Basically they're a "communal" garage where you can work on your bike. They also occasionally hold workshops to learn about specific topics. They're stocked with anything you could need in a mechanic's shop, including a tire changer. Rate was $15 an hour - not too bad, not something I'd do if I only had to do a simple oil change, but good for larger projects where you want everything in order. I had to replace my sight glass and I didn't want leaves and random things blowing into my engine/clutch, so I decided to try it out.
Overall I'd recommend it for anyone that doesn't have a great working space!