Now here's me being nitpicky (take it as constructive criticism):
- What does the name mean and how do I pronounce it? Does it relate to the service?
- The only text on the landing page is "enter a bunch of URLS, create a beautiful collection" so I take it that is supposed to mean something, but I have no idea what. A collection of what? Why would I do this? Pretend your user has never landed on your site before and has no idea why they should use your service (hint: they haven't and they don't).
- In the collection, why would I want to enter a title? This makes me think that maybe I'm supposed to share my collection with other people, but I'm not sure. Can they change the title as well?
- Nice touch with the edit-in-place for the title, but it didn't work as expected. I realized on the third attempt that I have to press "enter" to save the title. I expected it to post on blur, else it should hint that I'm supposed to press "enter".
- Tell me why I should share my collection with other people. Dropping a facebook plugin on the page does not make it inherently social. Give me a reason to share.
- One of the URLs I entered uses Google web fonts. It looks like your thumbnail generation didn't pick up on these, so the snapshot looks broken.