Website Reviewer and Tester
This link is to Lionbridge. They hire web site reviewers for Google and have other work from home jobs that are not customer service or call center related.
Machanical Turk is a market place for work. Workers select from thousands of tasks and work whenever it is convenient.
This is the site for User Testing.com. Customers pay this company to have people review their web site for feedback. You can get paid to be a web site tester but according to the company this should be considered extra income only.