Camelcamelcamel - Easily monitor Amazon product prices and get alerts when they drop.
Pinterest - Pinterest is a visual discovery tool that you can use to find ideas for all your projects and interests.
Fetchee - Fetchee is a free price tracking wish list app that works with all online stores worldwide.
DeviantArt - deviantART was created to entertain, inspire, and empower the artist in all of us.
Keepa - Price history charts and the option to be alerted on price drops for all Amazon sites.
Juxtapost - Bookmark, share and discover all your favorite things, side-by-side.