I recently came across a website that just launched:http://www.3dhubs.com
It's a little in the same vein as 100kgarages.com but it's geared specifically towards hooking up people with 3D printers and people that need things 3D printed. (You can upload an STL and it will show you how much each local 3D printer would charge you for that part.) It's fairly simple right now, being so new, but it looks like it could be useful. The kicker is that they require like 10 3D printer "hubs" to be listed in a given city before they "unlock" that city. Currently there are two "hubs" listed in Orlando (mine being one of them), so 8 more are needed before people can start using the website for Orlando. Part of the deal is that they want to hook up people that are geographically close, so that you could ostensibly pick up items in person, meet the person making your parts, maybe check out the machine, etc. Apparently part of it is also that they want people using the website to know they have other local choices and options if one of them can't come through, or something like that.
Apparently the most recently purchased Ultimaker2 printers have been shipping with a card that points you to the site. I think I got my machine right before the website launched though, so I didn't. It launched in Europe so the US offerings are a little behind, but it seems like it could be a cool way to maybe at least pay for some filament to help support the obsession. If you have a 3D printer and you'd consider using it to make parts for people once in a while for money, I'd encourage you to list your machine, or pass it along to someone who might. I'm curious to see how it goes.