BooNote is a free easy to use service for bookmarking. As w/ other bookmarking sites this site lets you organize your sites and even add notes. While not as robust as some other sites such as Diigo and iCyte I do think this is a nice site for beginners.
I recommend checking out BooNote by clicking here!
Thanks to Free Technology 4 Teachers for the tip!!
For other great sites on bookmarking check out my Top 10 list.