The search engines can be used for MoinMarketing too.
Google.com delivers our FrontPage as the first result for the keyword "moinmoin" (test), with Google.de it's the second hit (test).
It's remarkable that on Google.de a company (Pix Software GmbH) has booked "moinmoin" for adwords).
If you are searching for "wiki engine" with Google, MoinMoin is the first choice: http://www.google.com/search?q=wiki+engine 
see also SearchEngineOptimization