Here are some resources of Science, i found useful. Latest news on science, technology, hard science subjects of physics, space and earth science, electronics, nanotechnology and technology in general.
Museums are virtual Universities. 3D Scaled Interactive Scientific and Engineering Demonstrations in Tech Museums Inspire, Educate and Train many students on Science and Technology Subjects.
Such Live Interactive Demonstrations may be very useful for Maths and Economics as well. These are Subtle and Complex Sciences which need Gross Manifests or Exhibits to help youngsters grasp Ideas and Concepts easily.
PhysOrg - science and tech news
Publishing around 100 articles every business day, PhysOrg offers the most comprehensive sci-tech news coverage on the web. PhysOrg exclusive feature stories are original and not found elsewhere on the web.
Multimedia Physics - SchulPhysik
Physics and Physlets. Astronomy - planet, space weather, cosmos. Mathematics - algebra to statistics. Optics and electrical. Geophysics, Energy, Galileo.
Mike's Electric Stuff is an Online Electrical Vintage Tour, back in time.
Flinn Scientific - Science Activities - Sells educational science supplies. Site has especially useful information on lab safety and lab design. Physical Science Activities - Exciting experiments which illustrate important scientific concepts and are exciting for both you and your students
National Science Digital Library - NSDL was established by the National Science Foundation (NSF) in 2000 as an online library which directs users to exemplary resources for science, technology, engineering, and mathematics (STEM) education and research.