Open Knowledge Repository : The World Bank is the largest single source of development knowledge. The World Bank Open Knowledge Repository (OKR) is The World Bank’s official open access repository for its research outputs and knowledge products. Finding content in the OKR is quick and easy: users can Browse for World Bank content by Collections, Authors, Release Dates, Topics, and Title. Advanced Search is available and searches metadata such as title, abstracts, keywords, etc. A variety of filters for narrowing search results are also available, such as filtering content by Author, Date, Topic, Content Type, Keyword, Region, or Country.
Mathispower4u : Mathispower4u Tutorials offers over 4,000 open mini-lessons and video examples on mathematics with a companion You Tube Channel.
