Bookmarking

I've long intended to try a social bookmarking sites.  Today I signed up on Diigo.  I wonder how that is pronounced?  I found it not really intuitive to use and I stumbled around a bit.  I'm not a compulsive surfer or bookmarker, so this is probably more than I need in order to manage my few 'favorites'.  The sticky note idea is fun --too bad we can't use it on our work machines!  That I would have tried.  The one adavantage I can see is not so much storing my own bookmarks, but using the bookmarks and tags of others to help identify popular sites on a topic of interest.  I suppose my Google searches are ranked as well, but by machines rather than people.  This may offer a different perspective.