There are different types of research studies you can expect to be invited to:
a) Online surveys
b) Online real-time discussion groups with a small group of people
c) Online research communities with around 50 to 150 people discussing a shared topic over a longer period of time
d) Individual blogging - talking to a moderator one-on-one on a daily basis
e) Online real-time interviews
f) The length of a project will vary from 5 minutes to 1 hour
The subjects of these studies can differ. They can range from evaluating a service to testing new products or talking about your day-to-day television watching habits.