VocaLab is a pretty good and reliable survey company. Their surveys are easy to participate in. Basically you just need to call a toll free number, usually a customer service number of a service provider such as a airline or cell phone company, and sometime talk to a customer service representative regarding certain issues/questions you might have. The calls are recorded. Most calls and follow up surveys are fun and short.
I have done several surveys for them, they pay $1.00 for each project and they pay via Paypal very quickly.