In the first year of my CS degree we studied some rudimentary CS-related mathematics. Some of it I barely used beyond the exam, but there are two topics which

In the first year of my CS degree we studied some rudimentary CS-related mathematics. Some of it I barely used beyond the exam, but there are two topics which rise high above the rest in terms usefulness when working on real-world web apps. Set Theory: http://en.wikipedia.org/wiki/Set_theory http://en.wikipedia.org/wiki/Set_theory and Combinatorics: http://en.wikipedia.org/wiki/Combinatorics http://en.wikipedia.org/wiki/Combinatorics I can't tell you how useful these branches are in terms of the indirect and direct positive influence they have your thinking about how you organise and process data. Which at the end of the day is the core work of most web apps. Even the very basics will help you greatly, remember I'm talking about first year CS courses here!