This site is an excellent source of information regarding face recognition algorithms. A research team at Colorado State University (CSU) maintains the site and adds updates on a regular basis. There are four algorithms that are covered, including the popular Eigenfaces classifier. Source code written in C is offered as example implementations of each algorithm. There is also information on how to acquire the database of facial images used to test the algorithms, free of charge. The CSU researchers have listed their papers and technical reports on the Web site, which compare and evaluate the performance of each algorithm.