The National Library of Virtual Manipulatives (NLVM) is an NSF supported project that began in 1999 to develop a library of uniquely interactive, web-based virtual manipulatives or concept tutorials, mostly in the form of Java applets, for mathematics instruction (K-12 emphasis).Make greeting cards at home, learn typing, do a newsletter, create a scrapbook, start a business, get clip art or fix your computer, we have the right software for you. The best known brand in consumer software for over 30 years.The Comprehensive R Archive Network Your browser seems not to support frames, here is the contents page of CRAN.We have developed this cookie policy (the “Cookie Policy”) in order to explain how we use cookies and similar technologies (together, “Cookies”) on this website (the “Website”) and to demonstrate our firm commitment to the privacy of your personal information.Wong is a co-inventor on the original patent for the NeKo keyboard. Wong designed all of the products including: NeKo, MiKo, SoundSlate, OMX, DBeat, and others. Explore the links to the left to investigate Skim and consider helping out with the project. It is designed to help you read and annotate scientific papers in PDF, but is also great for viewing any PDF file. Project Page Developers Skim is a PDF reader and note-taker for OS X.