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Calisphere is the University of California's free public gateway to a world of primary sources. More than 150,000 digitized items - including photographs, documents, newspaper pages, political cartoons, works of art, diaries, transcribed oral histories, advertising, and other unique cultural artifacts - reveal the diverse history and culture of California and its role in national and world history.

"Engineers at the University of California, San Diego, have developed an iPad app that helps students learn spatial visualization, an essential skill for doing well in science, math and engineering. They have been testing the app during a high school summer program at the Jacobs School of Engineering at UC San Diego, as well as on undergraduate students at the school."

Although the app is not released yet, they do have a form to sign up for news releases and updates on its progress.

Swivel features more than 15,000 data sets for users to play with in various categories ranging from Economics to Health to Technology. From the data, users have created hundreds of thousands of graphs, charts and infographics, including the one below that visualizes the amount of rainfall in California since 1870. You can get started by copying and pasting your data or uploading an Excel spreadsheet or CSV file to the site. Once you've create your visualization, you can embed it anywhere on the web.\n

Connect your favorite courses to relevant learning resources. Exchange knowledge and information with other members whose academic interests match yours. Join peers and professors in exploring the newest academic frontier: free online courses. A new public beta version of a web-based college course library aims to help students and faculty find open curriculum content with a search function designed to narrow their hunt for free video and audio lectures. Einztein, a California-based nonprofit, launched the beta version of its library with more then 2,000 complete online courses grouped into more than 30 categories. Einztein's libdrary features a search enging that helps students and educators drill down to the course they're searching for. Users can sort their search by tags, media type, subject matter, and course provider, among other criteria. Students also can see course ratings on the Einztein site. Web sites featuring hundreds or thousands of free online lectures are often difficult to navigate, and students can struggle to find the next in a series of lessons from the same professor in the same course.

Would be helpful for those looking for supplemental information.