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Lt. John Pike with the University of California, Davis police department pepper sprays a line of Occupy Wall Street protestors at the campus on Nov. 18.

Photo: Louise Macabitas

After months of loosely composed images of tent encampments, bad pictures of clever signs and flat portraits of rag-tag protestors, some of the first iconic images have come out of the Occupy Wall Street movement by way of recent pepper spray photos. 84-year-old Dorli Rainey photographed in Seattle by Joshua Trujillo. Elizabeth Nichols in Portland by Randy L. Rasmussen. And the line of UC Davis protestors by...

Finnish entrepreneur Timo Poijärvi wants to change the way we discover music with Hitlantis — a visually impressive rethink of the traditional box of search results.

Poijärvi complains that using a search box to find what you want on a music site is like shouting through the letterbox of a record shop. He wants to let people more effectively browse around for what they want, and at the same time build the world’s biggest music community. “And I’m gonna do it,” he says quietly.

Hitlantis arranges its catalog as a huge circle of bubbles, with each bubble representing a band. You can click one to...