You can capture images using a tab you add to your bookmarks, and place them on Pinboards (which link back to the original website).
You can also view a feed with images all your friends are posting, and snatch them up for your pinboard as well.
I currently have Pinboards for layouts, paper crafting ideas, sewing inspiration, craft spaces, recipes, and home decor. You can view my Pinboards here.
As of right now membership is by invitation only, so if you are interested in starting your own Pinboard, post a comment with your email address and I'll be happy to send you an invite.
Be careful, though - major time suckage is in your future if you do. ;)