Enter some text about your interests or research topic into the Serendip-O-Matic, and get an intriguing array of related images and primary sources from the Digital Public Library of America (DPLA), Europeana, and Flickr Commons. A One Week | One Tool project.
Broadsided Press publishes a new, printable PDF featuring an original poetry & visual art collaboration every month; they've beeing doing it since 2005. You can even become a vector for this distributed, "serendipitous" press.
The American Festivals Project takes you along on two guys' National Geographic-funded 2008 tour of the "small, hidden, and bizarre" festivals celebrated all over the United States. Through photos, video, and a blog, discover Rattlesnake Roundup, Okie noodling, an American Fasnacht, the Idiotarod, and plenty more. [more inside]
"The Public School is a school with no curriculum. At the moment, it operates as follows: first, classes are proposed by the public (I want to learn this or I want to teach this); then, people have the opportunity to sign up for the classes (I also want to learn that); finally, when enough people have expressed interest, the school finds a teacher and offers the class to those who signed up." A project of Telic Arts Exchange.