One of the suggestions i made a while back on that was to do something like netflix does after you have watched a movie.
A few days after someone makes a purchase, the site should present a section at the top of the page showing the module they purchased and ask them to review it. I believe that will increase the number of reviews, and the more reviews there are, the more accurate any automated system will be.
A few days after someone makes a purchase, the site should present a section at the top of the page showing the module they purchased and ask them to review it. I believe that will increase the number of reviews, and the more reviews there are, the more accurate any automated system will be.