Wikihosting

What wiki hosting site you reccomend?
(i'm planning to migrate from reddit wiki, don't need anything fancy: just page history,categories(or tags) and hyperlinks).

>>12
To clarify: i just want alternative to hosting stuff on reddit,
Not managing a server, paying for services, etc.
Reddit is getting flaky lately, and its wiki functionality is pathethic(no page moving , forcing me to manually copy hundreds of pages)