About Nina...
I am a thirtysomething from Berlin, Germany. I prefer artsy (as in design, architecture, interior decorations, illustration, pop art, black and white, photography) and creative ones over view cards and touristy stuff. I think this will be about the only profile which you will read on here which asks you NOT to send view cards, multiview cards, or cards of your hometown. I'd totally prefer just a simple card with an illustration on it. If you actually take a look at what I send out (http://www.postcrossing.com/user/fabelfuchs/gallery/sent), you get a pretty good idea of what I like to be on my postcards. :)
I also don't mind ad / free cards as long they are not just the slogan for the company.
And since it is getting close to December: No Christmas cards, please. :)