How far back do your newspaper's online archives go? The U.S. Library of Congress has a database of thousands of newspapers dating back to the 1800s. In the case of over 150 of the papers, there are also digitized, searchable pages. And it's all available via its new Chronicling America API (technical details at our Chronicling America API profile).
Sometimes there's just too much interest in open data. The Greater London Authority has temporarily pulled its feed of the Underground due to "overwhelming demand." The service gave locations of every subway train in the city updating in nearly realtime.
Last month reported on how the UK government has established the Power of Information Task Force to lead a massive data sharing effort aimed at fostering social and economic progress by enabling widespread access to government data.