Mathcad Files Around the World - Large collection of links to Mathcad files on the Web. Most files listed are available for free download; some are offered for sale by their creators.

Mathcad at Adept Scientific - Links to free downloads, application files, education files, technical support files, and updates to Mathcad.

Mathcad Collaboratory - Official online forum for Mathcad users. Provides a means to share tips and worksheets for using Mathcad in many engineering and scientific disciplines.

Mathcad Explorer - Read-only version of Mathcad for browsing. Free for download.

MathCAD File Site - Collection of math, physics, and engineering-related Mathcad worksheets. From the Pennsylvania State University.

Adventures in Mathcad - Mathcad worksheets related to the teaching of chemistry. From Kevin Lehmann of Princeton University.

Mathcad Documents from Joseph H. Noggle - Offers Mathcad worksheets for download which help in physical chemistry calculations. Online supplement to a text on physical chemistry.

Introduction to Mathcad - Teaches basic Mathcad skills, including graphing, solving, and annotation. Designed for students and for Mathcad 6 and above.

BarBuilder - A plugin for MathCAD that renders transparent 3D bars.

Mathcad Mailing List Archives - Archives of the Mathcad email list, a worldwide discussion group, with gripes, suggestions, and lots of tips and solutions from Mathcad users.