- Twitter — which limits each text-only post to 140 characters — is to 2008 what the blogosphere was to 2004.
- Twitter postings as blog comments.
- SAP uses Blogs, Wikis and even Twitter
- Web Semantics: Science, Services and Agents on the World Wide Web, Selcted Papers from the International Semantic Web Conference, 2004 - ISWC, 2004, Hiroshima, Japan, 07-11 November 2004 3(2-3):147-157 (October 2005)
- CSCW '96: Proceedings of the 1996 ACM conference on Computer supported cooperative work, page 370--379. New York, NY, USA, ACM, (1996)
- Mensch & Computer, Teubner, (2003)
- Web 2.0 (2008)


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