OpenText:

OpenText is a project to promote collaboration between educators developing text books. The idea is to make the text and all of the source files to the text freely available, so that others can use, modify, and distribute the text with minimal restrictions. Thus far I've only released the following calculus text under the OpenText license, but as I develop more materials I will hope to release them under the same conditions, and look forward to the contributions of others as they arise.

Calculus    (Source Files).

Courses:

Fall 2008: Calculus for Physical Scientists I

Spring 2008: Calculus for Physical Scientists I

Fall 2007: Calculus for Biological Scientists I

Resources:

Solving Algebraic Equations

Links:

Physics Forums: This is a great resource for information about mathematics and physics. The community is extremely kind and helpful.

Wolfram MathWorld: A resource for definitions, statements of theorems, and more.

An Infinitesimal Approach to Calculus: A free online textbook that presents calculus from the perspective of infinitesimals.

Linear Algebra: A free online linear algebra textbook.