This looks pretty cool, I'm a happy Pinboard user but my bookmarks toolbar is still full of stuff I want to check later on but don't want clutter up my Pinboard with. I was able to sign up and install the Chrome extension, but clicking the extension's button on my toolbar does nothing. No login dialog or anything, nothing at all happens. Then I tried to see if I could play with the web interface, but there's no link to login on the home page. So I went to the signup page, guessed the login URL from there, and was finally able to log in. The interface is nice, if a little finicky. Deleting items and collections is not intuitive, overriding right-click in a web app is awkward. There's also no hover indicator when you're dragging a link onto a collection, so if you miss somehow Chrome redirects the tab to the URL you just dropped onto the page. These problems aside, I like the idea behind it and I hope you keep plugging away at it.