Thing 16 - Wikis

So what's not to love about a Wiki? They are a wonderful way to share information in a shared space. But, with everything on the Net, you need to be aware that the information they contain is not reviewed or refereed in any way, so cannot be taken as an authoritative source. However sources like Wikipedia contain lots of really interesting information that would be hard to find elsewhere - for example a list of all the Muppets from the Muppet Show!