From VMT

[edit] Web 2.0

"Many might consider IM a Web 1.0 technology, as its inception predates the technology market crash and it often requires the downloading of software, whereas most 2.0 applications are wholly web-based. It is here considered 2.0 as it is consistent with the tenets of Library 2.0: it allows a user presence within the library web-presence; it allows collaboration between patrons and librarians; and it allows a more dynamic experience than the fundamentally static, created-then-consume nature of 1.0 services. It is also considered 2.0 as it is becoming a more web-based application, and the software used by chat reference services is usually much more robust that the simplistic IM applications that are so popular (they often allow co-browsing, file-sharing, screen-capturing, and data sharing and mining of previous transcripts)." http://www.webology.ir/2006/v3n2/a25.html

"The rapid growth of networked services, along with continually falling costs of hardware, create new opportunities to use computer applications for work and leisure. Many potential users are not computer experts, and all of us encounter new applications and upgraded systems with new features and modified interfaces. Advanced applications developed for domain experts share with e-commerce web pages intended for all shoppers the challenge of how to provide sophisticated functionalities so that users can both easily learn how to use the system, and subsequently learn to use it more effectively." http://people.lis.uiuc.edu/~twidale/pubs/otslhics.html

GroupH Cognitive Walktrhough