Here are some tools that make adding a bookmark to Diigo easier. Particularly recommended for new users is the "Diigolet," which you can drag to your Bookmarks bar ("Favorites" in some browsers) and use to quickly share links with the group by clicking "Diigolet" then "Bookmark" then "Share to group."
An interesting article that shows how you can use Diigo effectively to collect information and bits of information from many different webpages in an organized way. The article presents some questions to think about when doing web research and how we can use tools such as Diigo to aid in gathering a large amount of information in one place. It also explains more in depth what Professor French has told the class regarding Diigo.