40 Sites with Amazing Free Stock Photos
Amazing list of 40 Free Stock Photo sites who offer beautiful high-res images for free. If you are a graphic designer you will want to bookmark this amazing list! 
Design Guide: 10 Design Principles every Designer should know
A Beginners Guide on How to Become a Better Graphic Designer - 10 Principles and Elements for Succesful Graphic design, illustrated with visual examples. 

Pretty good price / quality ratio.
They offer you a full range of styles and colors. They will also notify you in case your text or image are inappropriate.
Shipping was terribly slow. They need to work on that.
Rating: 4 / 5
Lovely designs but service is slipping and quality dropping when it used to be excellent. Feedback on their site is completely fake (they will only post positive reviews) Been using them for over a decade but my last order was disappointing: send them a perfect high-res image but the print was blurry and showed a blue-ish hue all over. They are reprinting, but it will be to late by the time they arrive.
Rating: 3 / 5
I have ordered the photobooks from Tiny Prints several times, and im really happy with their product quality. Their online software is easy and fun to use and the templates are wonderful. Qality of the books is excellent and shipping quite fast.
The only negative thing i can say about Tiny Prints is that it sometimes hard to get a hold of customer service.
Rating: 4 / 5
My holiday cards order was very good with Overnight Prints.
The instructions on their website caused us some confusion, but a call to Overnight Prints cleared it up quickly.
We received the cards a day ahead of schedule. They are glossy, high-quality, and exactly as I wanted them to be.
I will say that some of my colleagues ordered business cards from Overnight Prints, some of them did have some problems with crooked corners, especially, but since i needed this job done QUICK and cheap, i decided to go for Overnight Prints. I will be checking them out for anything not requiring curved corners in the future!
Rating: 5 / 5
We use Vistaprint for all our printing work. They are reliable and offer great quality print work for very good prices (especially if you use their discount coupons).
For us, Vistaprint is a reliable partner.
Rating: 5 / 5