Tweckr - The eyes of twitter

Tweckr. Simply a collection of images uploaded to twitter and updated every 20 seconds. Search by keyword is possible. Unfortunately there are some NSFW images that load (yes, even with a search for 'librarian' - go figure!) so I can't really recommend it for any serious research. However, watching over 100 images a minute fly by is quite hypnotic. There are an inordinate number of photographs of food that are posted!