Start3D has created a strong offering, with some unique features.
Side-by-side (JPG), JPS, MPO
Piku-piku*, Anaglyph Red/Cyan, Anaglyph Yellow/Blue, Parallel, Cross* this appears to be their specific implementation of a “wiggle” format.
Free** ** fine print states that the site is currently in beta, and implies that in the future there will be Free, Pro, and Unlimited account options.
Make albums public/private
Ratings and comments
Image embedding code
Social network sharing
Order lenticular prints of your photos or photos where owners have allowed printing
Ability to embed code for an image on your website.
Order 3D Print option to order lenticular prints.
Albums can be public or private.
No search capability.
This website has several interesting features which are not found elsewhere. The ability to order prints of your images in lenticular format (see lenticular printing), and control if this is possible, is one that stands out.
Overall design and layout could be a little slicker, but functionality Start3D
has a lot to offer.