Textbooks+&+The+California+Open+Source+Textbook+Project

Textbooks & The California Open Source Textbook Project
California's Open Source Textbook Project - **The California Open Source Textbook Project (COSTP)** began in 2001 as a collaborative – a public/private undertaking; it was the first organization created to address the high cost, content range, and consistent shortages of K-12 textbooks in California

CK12.org - Free digital textbooks for K-12

Open Courseware - K-12 at K12ed.org.

Curikki - Open K-12 Curricula Community. Gets great K12 teacher reviews!!

Carnegie Mellon - Open Learning Initiative - Open courses backed by learning research.

Digital Library for Earth System Education - Supported by the Natl. Science Foundation.

Math DL: the MAA Mathematical Sciences Digital Library - Mathematical Assoc. of America & NSDL.

National Science Digital Library - STEM resources.

Open Content Alliance - Building a digital archive of global content.

60+ Educational Resources to Teach Yourself Anything! - Open Courseware

10 Places to Buy Digital Textbooks - List of sites

Freeload Press - Affordable Textbooks

Textbook Revolution - Textbook Revolution is a student-run site dedicated to increasing the use of free educational materials by teachers and professors

Textbooksfree.org -Informing teachers about these free teaching materials might help lower the cost of textbooks

Open.edu - Top 50 University Open-Courseware Collections

101 Killer Open Courseware Projects from Around the World!

The Open University - 600 online courses