I am looking at using a wiki - but am worried that my site I do will end up as half cocked and messy as most sites here. I've been trying to look for good example sites and find 98% junk.
It creates the feeling that wiki's are easy to set up but hard to get beyond the "good idea" stage.
So i suggest you create a further sub class of wiki - that of working wiki - which is a in use tool - and play wiki - which is for people to experiment with.
There are lots of wikis - free and paid for - and they are easy to get started. I started 4 yesterday to play with and find out about the features.
I am afraid these will rot on cyber space now until doomsday - as I'm now searching elsewhere.
I need to see examples of top sites, not have to wade though 100's of students woefully incomplete work!, to help me form an opinion.
I further suggest that you can CHARGE for the transition from play to working site - a nominal amount - as $20 - annually - this can pay for some feature like making the site self login (and by implication making the unpaid, play site invitation only).
By the way - the feature I am looking to see are emedded video ( so I can add little training to my pages, skypme to people can phone me, photos showing whats possible and imaginative style themes.