What is Your Favorite Social Bookmarking Site?

This week’s poll focuses upon social bookmarking sites.

Bloggers have a fascination with these sites – some because of the lure of avalanches of traffic, others because they find them to be sources of inspiration for posts and others because of the social interaction.

But which social bookmarking site do you like the most?

I’d love to hear why you choose the social bookmarking site that you do and if you choose ‘other’ what one you’d add to the list.

Thanks to sitemost on Twitter for the idea for this Poll.