Not sure why the comment underneath this one was killed, but there's been a lot of large exits in the advertising space, and the people have gone on to invest in additional startups.

A case in point: I worked for Right Media, and then left after its acquisition by Yahoo to found a company that took angel money from (among others) the former CEOs of Quigo and TACODA.

HN just has a curious blind spot when it comes to advertising technology, which is something NYC does quite well.