So the question has been posed many times about the strange nature of the Word of Wisdom, our law of health, which disallows coffee and tea, yet does not explicitly disallow caffeinated beverages like soda. I will say,f as a night nurse until so very recently, I couldn't have made it through most 12 hour shifts without caffeine. I usually relied on some caffeinated Crystal Light. But I also once had a patient who damaged his heart with Monster drinks. Caffeine can be harmful and habit-forming, so I believe it is best to minimize or avoid it. I suggest the following link.
http://en.fairmormon.org/Word_of_Wisdom/Hot_drinks
And this is a recent-ish addition to the LDS website. It addressed many hard topics that were usually left to others for defense, including topics brought up by the author of the PDF that Ric read and found so interesting.
http://www.lds.org/topics?lang=eng
I think this is cool because I think over the past 30 years the Church has tried not to directly address some of these harder topics because they feared for those who were not well versed in criticisms of the Church, worrying it would draw more attention to such criticisms. But now, with so much readily available through the Internet, members are exposed to criticism more readily, and those who are naive to certain topics are not well prepared. I like this more open approach, and I think the articles are well written. It's not an all inclusive list of topics, but I think it does well addressing some of the big ones.