The idea of WIKI is based on two concepts:
- Making the creation of a website so simple that even your mother can make one
- Making it so that not only your mother but all her children and grandchildren can collaborate with her to fill the website.
To realise point 1 Wiki-creators introduce what I call SIMPLETEXT, a set of simple rules to do the layout of a page: Nice? no, this set of rules helps you only in that local situation, and if you use another tool your wiki-knowledge is useless: So I advise nowadays to learn - even in a Wiki - a little HTML-tagging tat you can use also in other tools, like Moodle when you step out of the control of the great great HTMLarea.. So using wiki text in Moodle? no thanks..
More interesting aspect of the wiki idea is the collab writing on a website: for this reason the good wiki's offer options as version-archives of previous pages, locking pages, paswords for different right-levels, easy one-step integrating of images on a webpage (liek now the inline image in the forums).
I toyed with sevral tools, like wakkawiki, miniWiki, phpWiki, wikipedia, Twiki and the beast TIKI... but using it in educational sitiuations I ended up with a simple bookmetaphor: myScrapbook and the simplest wiki of all Swiki: The easiest tool to create websites with gropus of chidren from 12 till 16 year. (Lost of the time also with abook metaphor)
For portfolio and Webquest would this functionality be an interesting feature..