There is so much great stuff on Ffffound that you can easily spend all day there browsing images. Ffffound is a fantastically well designed image bookmarking site by tha ltd, the brain child of famed Japanese Flash master Yugop. Ffffound has wisely chosen to keep membership by invite only in order to keep up the quality of the submissions. Which is great unless you don’t have an invite.
Vi.sualize.us is a good alternative for the rest of us, despite have one of the worst URLs ever (try remembering it). It’s a nice and responsive web app that makes image bookmarking a one-click operation (especially via their Firefox plug-in). Until now I’ve bookmarked web images by dragging them to my desktop, but that’s so 2004. In my quest to push all my personal data into the cloud, I’m now uploading all my image bookmarks.
Another source of cool images is the new tumblr image blogs that are popping up recently such as this isn’t happiness and arts and crafts. These image blogs mainly showcase found web imagery of the cool and/or retro variety. Subscribing to the feeds ensures great quality images interspersed among your daily news stories.