Hope this finds you doing well and enjoying the sunshine when possible.
Thought I would share a few items that I have been using.
My most recent is www.artscow.com they do prints and photo books. They are offering a bunch of freebies right not so that is why I tried them out. The only catch if you will is that you pay Shipping & Handling(mine was about $8.00 for 100 4x6 prints). And they come from Hong Kong but, they did come very quickly! If you are thinking of trying them out can I refer you? Let me know!
I have also given props in the past to www.moo.com but would further like to mention it as if you create a pro flickr (www.flickr.com) account to share your photos(public or private) you get a moo credit.
In addition I have noted photobooks and right now www.mypublisher is offer their monthly buy one get one free. And I did receive an email from BLURB for $10.00 off(email me if you would like the promo code).
I hope this is helpful and would love to hear of any discoveries that you have made!