I recently joined the MyView opinion group. Since then, after participating in several surveys -- some at length, I am told that I do not qualify for the survey (and no points are awarded). I am, however entered into a contest where I could win $1000. I won't hold my breath for that.
I belong to a few other sites as well. I'll know more about how legitimate they are as time goes on, but the only one that I've been able to accumulate and get paid for points was Synovate.
The thing about MyView that annoys me the most is that I spend upwards of 10 or 20 minutes answering questions about politics, products or services, only to find that I don't qualify for the survey.
I just wanted to pass this on before any of you waste time with them. If you've had a different experience, please let me know.