Michl, Hi, this is Ike Sultan, the editor of Halachipedia. What you put up is a great start. I just wanted to mention one crucial thing- everything that goes on halachipedia NEEDS a source. The content is only as good as the sources are. So for what you did I added sources, please continue similarly. Also I took out the halacha of bet din not being obligated in pidyon haben after trying to find this halacha and relizing that it is a serious machloket achronim see Shach and Taz YD 305:11 that one can't simply minimize by writing one way without any source. Besides that, thanks a lot. Yasher Koach!