At the CeBIT show, Zoho gave a presentation detailing just why online applications are different. At the same time Desire2Learn made a great video showing how easy, and useful, online notebook products can be.
Both of these videos reminded me of a discussion I had with an installed applications vendor recently. His main basis for discounting web apps as necessary, was that the remote access traits shared by all web apps can be replicated using various technical means for an installed app (terminal server, citrix whatever).
All of this kind of misses the point – web apps have benefits way beyond those of remote access anywhere. The three videos below (the two mentioned above and a pretty exciting one from Google apps) show just why this is the case. Enjoy!