Ask HN: What does the AdBrite shut down mean for online advertising?

I have to confess that I don't know too many of the independent ad sales companies (such as AdBrite). I'm curious to hear from others what you think AdBrite's failure means across the board. How does it affect Google Adwords (or does it)? How this affect Microsoft's advertising/Bing/whateveritis/Yahoo? I'm not quite sure why AdBrite wasn't able to make a better run at it but I'd love to hear more about this story and it's consequences.