I have been writing posts about resources and links which might be helpful in learning for students, teachers and parents. Mostly I review the sites or educational portals, where I find that source really valuable or free to access. And usually I include the important page links at each of my post to search fast.
Today's site is Study Sphere.com which is a search engine based learning portal for students, families and teachers.
Mission and goal: "StudySphere provides fast, easy and free access to a wide variety of research-quality child-safe websites organized for education online from home, school, study abroad and home school. StudySphere’s goal is to help students, teachers, librarians, and other researchers find both highly targeted and closely related information quickly."
StudySphere categorizes over 100,000 research-quality child-safe websites.
It is very easy to search for your favourite topic sites, as home page provides topic catagory, where you would get number of site links. For example I searched for
teachers resources and at the Teaching resources page there were a lot of site links divided into further catagories.