Some people use Grind Spaces: grindspaces.com. I have never used them myself, though an agency I worked for in the past built their website, so I know they are tech-centric. NYC has so much to offer in this regard, its a huge technology hub, so there are going to be tons of technology-positive / developer-oriented coworking joints around the 5 boroughs. Well actually, I bet theyโre all just in Manhattan and Brooklyn heh.
Something tells me DUMBO, Brooklyn, would have a lot of web devs in coworking spaces. Its just a hunch tho.
I live down the street from this place: bathaus.com. Iโve never used it myself (my home office kicks ass), but I can tell you its a very artsy and safe neighborhood (Bushwick), and its about 2 blocks from a subway station. There are too many cafes to list in my neighborhood (and bars), but there are a lot of bohemian/nomad types here. You could probably bump into some interesting people at a place called Kave, in a building named The Loom, that is sort of near this coworking space I listed above. Also its street art galore.
Since youโre here after the 10th, I highly recommend you quickly join the NYC.rb meetup.com group, and attend the meetup on Tuesday, Oct 13th, @ Pivotal Labs (on 6th ave). I am too new of a user to put links in posts, so check meetupโs website. Free pizza and beer, Pivotal Labs has a great venue for talks, and these events are always informative and social.
There is a meetup group called โBots and Brainsโ that is meeting for a happy hour on Wednesday of that week, they do anything from AI in Python and Ruby to robotics. Iโve never gone, but there is a group named โAndroid NYCโ that meets every Sunday.
Iโd recommend just browsing meetup.com for technology topics youโre interested in, and see whats going on the week you are here. You just missed Couchbase NYC, a free, huge โNoSQLโ convention that served three free meals and had a plethora of interesting talks, in a historical Wall St building. There is always something happening technology-wise in this city.
(Again, I cant post linksโฆ) Do a web search for โtechweek.com new york cityโ - there is quite a lot happening at that conf. Eventbrite is also a decent source for these things. I just found a website called events.alleywatch.com that has a few things.
Also the โHorizonsโ conference is this week! Not really tech, but its, well, science-y! Iโve gone prior years and heard some fascinating talks.