Using twitter and the connecting image upload services, PicFog shows pictures from twitter as they’re posted, in real time. You don’t even need a twitter account to enjoy the benefits - and you can filter by any keyword, location or twitter user.

Mashable says: “On the homepage, PicFog displays all the new images posted to Twitter in real-time, with auto-refresh which you can stop at any time by clicking on the “pause” button. Of course, that’s a lot of images to handle, but you can search for specific images either by entering a search query or by clicking on one of the current Twitter trending topics, displayed on the right. You can also see the number of retweets for each image, or search for images of a specific user, by entering a query such as http://picfog.com/user/mashable.”