[Air-L] Reliable "academic" online research panel company

[Kyun Soo Kim]

Hi! All,

Please help me to find some good online research panel firms based in US.
I mean reliable and cost-effective by saying good (: I have been looking for
them, but my search has not been productive. If possible, I would like know
more academic-oriented firms than market research panels. Some of them
may do both. I would be grateful for your sharing of  experience and
information. You can email me at kyun4zzing at gmail.com.

Thank you for your inputs in advance.

Kyun Soo