I was recently introduced to Moo.com and decided to order my next round of business cards through them.  They offer creative card services including 50 unique card backs, rounded edges, and mini cards.  This is such a great idea for photographers like myself who want to share my work and imagery in a professional way.  Unique photo backs also offer clients the option to choose their favorite photos and remember you!  You can order them on their premium stock paper or recycled like these (still very nice quality – very sturdy compared to normal cards).  Check them out and ask me for your favorite next time I see you!   http://us.moo.com