proto (google code name r-proto) is an R package which facilitates a style of programming known as prototype-based programming. Prototype-based programming is a type of object oriented (OO) programming in which classes and objects are unified into a single concept, prototypes. This makes proto and prototye programming simpler than the usual OO model yet it retains the OO features of inheritance (known as delegation in the prototype model) and OO dispatch. Applications, News, Additional Information sources, Proto Bugs and Avoiding R Bugs sections are given below while associated Links are in the http://code.google.com/p/r-proto/wiki/Links WWW: http://code.google.com/p/r-proto/