Almost impossible to answer your question on this forum. You would really need to outline your goals, aspirations, and budget.
cardomain.com has been built specifically and somebody has either used their own time and expertise to make it or has invested good money in having it done.
If you do not have a computer background consult with somebody who does. If they are real professionals then they will not only point you in the right direction but will give use a proper route for achieving your objectives.
If your aim is a cardomain.com site of your own then a wiki will not do it for you.
Good luck with your enterprise.