If you meditate regularly, can you share your experiences, how you got into it and in what way it has been beneficial for you? This can of course include religious prayer but only if you pray for the purpose of calming your mind and as a form of meditation. All the god-bothering asking him/her/it for stuff doesn't count!
Of course, anyone who wants to debunk meditation is welcome to do so as well.
Any books or sites that you particularly recommend (either for or against meditation) would be helpful as well.