Pinterest is a virtual pin-board to mark all your favorite links, but it's better than any bookmarking service that I've used before. When you see something that you like on a website, there's a little "pin it" button on your browser that you click and a window pops up, allowing you to choose any picture from that site to add to your pin-board. Then you can add a description and categorize your pins.
I have categories like Dream Home, Party Ideas, Things to Make, Recipes, Wishlist, and Places I Want to Go Someday. When I view my pins by category, I see thumbnails of my latest pins.
Then when I click on the category, I see all my pins, and I can click directly on the picture to take me to the website where I found the photo. So easy, right? It makes referring back to ideas that I saw on the web so much easier.
You can also follow other users on Pinterest (you can follow me here) so I can follow a lot of my favorite bloggers there. And I'm addicting to browsing Pinterest because it's so fun to see the cool ideas other people are pinning. When you're looking for an idea for a party or your home, it's a great place to start searching.