We present a multivariate calculus course for Business and Economics. This course is available on-line via the e-learning site of the University of Porto (http://elearning.up.pt). The course was build in order to complement classroom and the project organization followed a systematic and modular approach of the subjects. Modules are based on lessons, each lesson consists on (i) theoretical summary, (ii) practical exercises, (iii) solved problems, and (iv) application examples to economy and business. Documents format used were .html for on-line faster access and .pdf for a better quality off-line. Results from past editions as well as feedback comments from the students inquiries are drawn.