Diigo

What I like:  I like that it is like an online favorites.  So you can have your favorites on any computer you get on.
What I don't like:  It's a little confusing, especially at first.
What would I use it for:  Saving my favorite sites for when I get on another computer or go on a trip.
What I understand:  I understand its purpose and how to save bookmarks
What I don't understand: I dont know how it fully works.  It has other functions we haven't learned yet.