To get a taste of the evolution of the GUI see the Room 101 blog, but I found there are real GUI fanatics out there, including:
- GUI Gallery - "screen shots of various desktop computer Graphical User Interfaces and operating systems"; and
- GUIdebook - "a website dedicated to preserving and showcasing Graphical User Interfaces, as well as various materials related to them".
Both site have timelines but GUIdebook looks the most comprehensive and you can follow the evolution of the GUI from Douglas Engelbart to Windows Vista! Of course if you want to go back further, try this CGI Timeline that starts with the Chinese Abacus.
Tags: computers and society, GUI, history of computing