yang hongmei's List: diigo|应用文章

But, now let’s get to the “social” part of social bookmarking.  Let’s say  you find a really awesome site for your unit on Greek Mythology, and you tag it  on Diigo.  You see when you look at your bookmark list that 72 other people  have tagged that exact same site.  You can see the lists of the other  people who have tagged that site, and you might discover a 6^th grade  teacher in Wisconsin who has an amazing list of Greek mythology sites that you  didn’t even know about.  Now you have taken advantage of the social part of  the bookmarking process by adding some of those bookmarks to your list.