I have a website that basically is a collection of old photographs taken during the American Civil War. I am thinking of giving my users the ability to add content to the website by using some type of wiki so they can create articles about various Generals, soldiers, battles, etc.
I am new to this, but what it is a good wiki to use for my website? I want to use something simple that will also let me add google ads to it, if possible. An example of something I liked was how this website uses a wiki: http://www.patricksaviation.com/wiki/Main_Page
Can someone point me to a website where I can get something like that for my website? thanks!