These are just some resources one should look at before asking any questions they might not know.

NetRep - A great source for card rulings and scans

R.O.N.I.N. - Rulings Online Networked Information Node: a downloadable database containing every card ruling up-to-date

The Official Yu-Gi-Oh Trading Card Game Website - Contains news, card rulings, tournament listings, and many other online resources you may want to look at for the YGO TCG.