Zimbra is an open source server and client technology for next-generation messaging and collaboration. Zimbra delivers innovation for both the administrator and the end-user as well as compatibility with existing infrastructure and applications (both open source and proprietary).
incsub is an organisation devoted to social software and open source in education and training. Founded by James Farmer, incsub is the home of edublogs.org, learnerblogs.org and uniblogs.org as well as Blogsavvy and incsub associates consulting.
Web2.0 is a term used loosly to describe a set of technologies, and their usage patterns, which shift the focus of user activity on the web from consumption to participation.