There are many slide presentations about wikis out there these days and I wouldn't normally bother putting one on this blog, but here is one that really stood out.

A few points:

• The message is good and very clear. The new starters usage pattern is one that I have used, champion and often recommend.
• Is Jessica a real person? It doesn't really matter for the presentation, but for a wiki, identity matters and the reason that 'Jessica' would happily to contribute her good ideas is that they will always be associated with her identity.
• Slideshare is a great resource, and it embeds easily into most wikis and blogs