[fein]

Possibly an unpopular opinion, but I agree. Google has had their bookmarks service since 2005, and I don't even use that. Standard import/ export and attach the file is all I've ever needed.

Perhaps there is a use case outside mine? I also don't give an iota of a shit about socially sharing my bookmarks.

[CrazedGeek]

Cross-platform access is the killer feature for me (with Pinboard). I frequently need to access my bookmarks on systems that aren't my own, so these sorts of services are quite handy.

[chronomex]

I often send a friend a subset of my bookmarks. Having an online service with good share-able urls is important to me.

[alxbrun]

I agree with you. URL is just one kind of the things we need to quickly store. We also need short notes, pictures, blobs, sounds.. and for that, we need something like Evernote. Having an app just for URLs seems crazy to me. Just MOO.