Another vote for Pinboard. Been using it for some months now and I love the minimalism. I've had one occasion to contact support and my issue was very promptly

Another vote for Pinboard. Been using it for some months now and I love the minimalism. I've had one occasion to contact support and my issue was very promptly addressed. Highly recommended. @idlewords: just make sure you're ready for the possible flood of new users. :)