Pascal
Pascal is an influential imperative programming language, developed in 1970 by Niklaus Wirth as a small and efficient language intended to encourage good programming practices using so called structure programming and data structuring. http://en.wikipedia.org/wiki/Pascal_programming_language
PASCAL > Source Code
Pascal Zone - Huge list of categories for free Pascal source code at Programmersheaven.com.
http://www.programmersheaven.com/tags/Pascal/
Pascal Sources - This is a free offer of sources for Borland Pascal 7. You can find here several complete units and lots of small code snippets for Borland Pascal
http://www.brain.uni-freiburg.de/~klaus/pascal/sources/
Merlins Tower (Mac Source Code) - Complete Pascal projects, including source code, resources, project file and running application (for Mac.)
http://www.pascal-central.com/merlinx.html