It looks like Shutterfly has extended their 101 free prints offer until November 6th. To get your free prints, you need to be a new Shutterfly customer and pay shipping, which is around $8. This offer is also only good for 4×6 prints.
Just head over to Shutterfly, upload your photos, and use the coupon codeĀ SPOOKY.
You can also get $10 off a $10 purchase at Vistaprint.