Which Wiki do you use?

[symptome]

At this time I use mediawiki.
But it's quite slow. And I would wish more than 2 levels in navigation.
And I would like a bridge to vb that is supported, not like nuhit.com.

So which Wiki could I use? And which bridge?

Thanks a lot!

Marcel

[symptome]

OK, no wikis out there ;)
(or no other wikis besides mediawiki/nuhit?)