Wiki Questions

I'm a little confused about Wikis and how to use them. I'm using Ultimate Demon at the moment and it posts to MediaWiki sites of which I've harvested a bunch.

Wanted to add that these are sites, well at least two of them, that I want to keep long term, not hit and run sites.

-Is it OK/advisable to aim links from Wikis directly to your money site? How many?
-Are they better used to blast your 1st tier instead? How many?

Thanks for any help.

Its okay if you target wikis to main site directly as Google has given good authority to wikis.

They will also work great for second tier.