arXiv is a free distribution service and an open-access archive for 2,299,453 scholarly articles in the fields of physics, mathematics, computer science, quantitative biology, quantitative finance, statistics, electrical engineering and systems science, and economics.
etalks.tv is a bilingual (german & english) online video platform, with a growing collection of informative interviews, live-events, debates and discussions in the fields of culture, politics, economics and science.
Chris Anderson's blog about the shift away from mass marketing toward niche marketing, and the implications of this (and other effects of the IT revolution that make Long Tail possible) for the future of society.