I was contacted by someone that maintains a pro-Shugden blog in response. This person was extremely polite and has a very different view on the subject than I and most Buddhists do. In response to his or her politeness, a rarity on the internet when people of opposing views collide, I want to post two links for those that are actually interested in this somewhat arcane tale.
The first is the link to the Wisdom Buddha Dorje Shugden Blog, which is owned and maintained by the person that contacted me.
The second is to an article called Schisms, Murder, and Hungry Ghosts in Shangri-la, which is a fairly good assessment of the situation as I know it. There are a few details that Lamas have passed to me that aren't in the article, but this is pretty much the most comprehensive treatment I have found thus far.
Lastly, though I am mainly Nyingma and Bon, and support the Dalai Lama on the Shugden issue, I do wish to point out that Geshe Kelsangs books on Tantra are excellent. Whether you practice Shugden or not, his books are rich with details that are hard to find elsewhere.