Using Diigo

I think I could find some use for Diigo to organzie my favourites.....I have quite a mess currently of links I want to keep and I think Diigo could help me to organize a bit better. I tried to search for a pretty general term "gardening" but I really didn't find anything there that useful.....I am not too sure yet about the sharing part....I realize Web 2.0 is all about sharing and user generated content and organization but the library in me still likes the confines of controlled language!!