ValueClick Media -- VERY low eCPM! What should I do?

You should give ValueClickMedia a few more days for optimizing your traffic. Don't remove the ad codes for 3-5 days and in all possibilities you should be seeing a higher rate.

Having said that, both VCM & Adversal are quite similar in terms of earning potential. I have used both ValueClickMedia as well as Adversal and it was the latter that performed little better for me. So don't expect too much deviation from what you were earning with Adversal.

Regards,
Deb