Now-a-days there are so many online for educational resources, among in these online some includes PDFs articles or presentations more are based on visualization of tutorials.
We should be very much thankful to the National Science Foundation, The Science360 is a Video Library with latest wonders of science, engineering, technology and math. The latest science videos provided by scientists, colleges and universities, science and engineering centers,the National Science Foundation and more. Each video is embedded to put on your own personal websites,blogs and social networking pages.Science 360 engages the general public, science junkies and students alike in the cutting-edge discoveries and big science stories of the day.
The main page will show a Featured series of videos to be accessed randomly mixed, but the "topics" we divided the content in astronomy, space, chemistry, earth and environment, life sciences, mathematics, medicine, and more categories in which we find all kinds of videos.
Another interesting option to explore is the category "series", in which we deployed a number of specific topics including video collections on the topic to explore. (for example : I opened "Sustainability : water" in which I found number of videos and information in relation to Sustainability of water in different places)
Science360 network also has following sections
1. News gathered from wherever science is happening, including directly from scientists, college and university press offices, popular and peer-reviewed journals, dozens of National Science Foundation science and engineering centers, and funding sources
that include government agencies, not-for-profit organizations and private industry.
2. Radio contains all science 360 Radio shows & it has the featured episodes like Big Picture Science, Nature,Science podcast,The Discovery Files etc.,
3. iPad : The National Science Foundation's (NSF) Science360 for iPad provides easy access to engaging science and engineering images and video from around the globe and a news feed featuring breaking news from NSF-funded institutions. Content is either produced by NSF or gathered from scientists, colleges and universities, and NSF science and engineering centers.