I very nearly chose Adzerk for our advert display platform at work, but in the end went with installing OpenX and doing it all in-house.<p>It's nice that we have more control over things, but boy is OpenX a hassle to deal with. I sometimes wish I'd chosen Adzerk instead.
AdZerk is a fantastic local company doing impressive things with node.js in a space that is admittedly underwhelming. James is the driving force behind that, with his decision to move to the RTP region and make a clear statement about the objective of the company early in its history, really has made AdZerk successful.