Snip.it is a excellent site for curating the web similar to Pinterest. This works by "snipping" or clipping a website that you like into a collection. A user can name these collections and even add text to each "snip". Once a collection is built it can then be shared w/ others through popular social networks or links. Also, a user can subscribe to other collections as well as track stats on who's following theirs.
I recommend checking out Snip.it by clicking here!!
For my Pinterest board on website curators click here.