The document discusses the concepts of lifecasting and microblogging as well as their emergence and usefulness. Lifecasting involves continually updating one's status and activities on social media, while microblogging uses short posts, typically 140 characters or less, for lifecasting purposes. These tools allow for real-time sharing and discovery of information. Their "natural use" of common technologies makes them more practical than virtual environments. The document also explores how microblogging can help transform conflicts by providing records of negotiations and discussions.

12. The top players

14. Membership crossover From: Compete.com

19. Examples Twitter (rendered in Twhirl in this case) Facebook status updates Twitter on a Blackberry