Actually, much of what I've detailed came as a result of my work on Yahoo! Mail and Calendar, which is a highly complex web application. Smaller "classic" sites

Actually, much of what I've detailed came as a result of my work on Yahoo! Mail and Calendar, which is a highly complex web application. Smaller "classic" sites can get away with not having as rigid of a system. Nicole Sullivan's OOCSS covers a bit about this component-based approach and Nicole formerly worked at Yahoo! and has done consulting for Facebook and other companies with large-scale web apps. If you have any additional categorization that you think would be applicable, however, I'm open to feedback.