[1] http://www.amazon.com/gp/feature.html/?docId=1000739811&ref=...
[1] http://www.amazon.com/gp/feature.html/?docId=1000739811&ref=...
Prime gives you free 2-day shipping on a large number of Amazon products and gives you unlimited access to Amazon Video.
I personally was a little surprised (and disappointed) Amazon didn't roll this out as another Prime perk. I'm not sure why making Amazon Video available to Prime members makes financial sense to Amazon, but making Kindle Unlimited doesn't.
edit: With Prime, you also get access to music, some ebooks, and something called "Amazon Pantry". There is a description here:
http://www.amazon.com/gp/help/customer/display.html?nodeId=2...
Also: Prime gives you access to the lending library, but you can only lend one book a month.
I'm a Prime subscriber and I didn't know about this. It seems the lending library has 350K-500K books, not dissimilar to Kindle Unlimited. And like other commenters, it looks like both unlimited and the kindle lending library has pretty small intersection with my reading habits.
In a Dream World I would be able to get a Free Shipping only Prime Account. I will probably cancel my Prime after this year since the jacked the price up to $99, Just not worth it anymore (plus they now charge Taxes for my state so I am buying less and less on Amazon)