For the money (free, hosted) GAM is hard to beat. Google just kicked off a major update of GAM and are rebranding it as DFP and will be charging higher volume c

For the money (free, hosted) GAM is hard to beat. Google just kicked off a major update of GAM and are rebranding it as DFP and will be charging higher volume customers. I haven't looked at OpenX in two years -- would love to hear recent experiences with OpenX.