Originally Posted by MaDalton

not easy

- a proper translation
- direct debit billing option (CCBill offers that - or companies like webbilling.com)

and then you only have the "little" problem that german webmasters (that live in germany) cannot promote you as long you have hardcore content available without age verfication system. on your whole site including member area

you could try to set up geo ip for the tour and implement an age verfication system - but thats a lot of hassle for not even knowing if you will get german webmasters to promote you