Web design and integrated marketing: This author hits the nail right on the head: Web applications are not the same things as Web sites.
I learned quickly that the design choices one makes for a Web-based application are often quite different from those of a content-based Web site. Why? Because they are used for different purposes.
The points about frames and visited link color are just creepy, because whenever I’ve talked about or taught the difference between sites and applications, those are the two things I use as examples. I loathe frames for Web sites; I love them for Web applications.
I realized this one day while playing with silverorange’s Intranet — it uses a frameset, and I realized one day that it was completely natural because it was an application, not a site.