The Oatmeal has a brilliant comic titled "How to suck at your religion". It's really a treatise on how NOT to suck at your religion. It's a little long (well, tall) but it's too brilliant to pass up. If everyone followed this common sense advice, the world and everyone in it would be much happier.
My favorite section is this:
The lack of a need to proselytize is one of the things I've always admired about Judaism over Christianity. Of course, it was a huge strategic mistake if you believe that religions are all about power, but that's a whole other blog post.