What social bookmarking website do you use?

[asiren]

See subject line.^ If you use a social bookmarking website, which do you use? Delicious? Stumbleupon? The defunct Ma.gnolia.com now called Gnolia.com?

Comments

[pisces6.livejournal.com]

I've heard of Diigo. I'm going to look at it because the idea of highlighting pages sounds pretty good. Thanks for the recommendation!