Usability Views Article Details  home | timeline | recent | popular | e-reports | userati | about this site iOpt toolkit (10 Dec 2001) Article URL: http://www.btexact.com/publications/whitepapers?doc=42271 Read 22 more articles from British Telecom sorted by date, popularity, or title. Next Article: Loops: Designing a Web-Based Environment for Persistent, Semi-Structured Conversation This site is a labour of love built by Chris McEvoy