We have hundreds of market research sites that each conduct surveys for a variety of companies. The surveys vary over time with the needs and requests of the companies represented. Many are related to new product development and effective marketing and advertising techniques for products. Some are very specific such as in technical areas like computing. You submit a profile of personal information to each site and they email offers for surveys you may qualify for. The surveys themselves are conducted online and may consist of something as simple as questions with multiple choice answers. Others may be a study where you need to read about a particular situation and then respond to questions about that "case".