I have created a site on business reviews. It is designed to address the need of too few business reviews on products and services. Here, some links to some printing reviews.

http://www.businessservicesinsider.com/Business-Printing-Services/
http://www.businessservicesinsider.com/Business-Printing-Services/Print-Runner-Review.html
http://www.businessservicesinsider.com/Business-Printing-Services/Printing-For-Less-Review.html
http://www.businessservicesinsider.com/Business-Printing-Services/Express-Copy-Review.html
http://www.businessservicesinsider.com/Business-Printing-Services/Vista-Print-Review.html http://www.businessservicesinsider.com/Business-Printing-Services/PsPrint-Review.html
http://www.businessservicesinsider.com/Business-Printing-Services/Overnight-Prints-Review.html
http://www.businessservicesinsider.com/Business-Printing-Services/Print-Place-Review.html http://www.businessservicesinsider.com/Business-Printing-Services/Next-Day-Flyers-Review.html
http://www.businessservicesinsider.com/Business-Printing-Services/123Print-Review.html
http://www.businessservicesinsider.com/Business-Printing-Services/48-Hour-Print-Review.html
http://www.businessservicesinsider.com/Business-Printing-Services/Uprinting-Review.html