Unlimited
Standard array of products: prints, calendars, etc.
Limited editing and customization functionality
Standard quality products and photos
Average pricing; mediocre customer support
Unlimited storage; 5MB maximum on photos
Standard array of products: prints, mugs, calendars, cards, posters, and more
Basic editing tools (e.g. crop, red-eye removal) but nothing special
Above average quality; tends to produce a good product with high resolution photos
A bit more expensive than competitors and mediocre customer support