I found my job through nextNY (Bug Labs) and my girlfriend found hers through new-tech, and the connection from that job led to the one she is currently at.
Anecdotes != conclusions, but for us it worked very well.
Probably should plug my own place huh?
In NYC
We're often putting up new jobs. At the moment we are looking for a QA engineer and a business intern (that one is probably San Fransisco but I'm not sure).
I'm not very in tune with our hiring but for a while we were looking for development engineers too. I'm sure it wouldn't hurt to drop a resume if you have experience with embedded Linux development (OpenEmbedded especially), JavaME/PhoneME, Eclipse plug-in development, and a passion for open source.
Seems like your business intern position is aimed at finding people from MBA programs. Is that correct?
(um or http://startuply.com/#/in%20new%20york/1)