Hi there, Slade:
Are you absolutely sure that you didn't make any technical errors when you added the article page?
Did you by chance change the meta title tag of the home page when you added the article?
I did something like this, and I think that my site MIGHT have done that too. However, at some point after creating that article, I accidentally noindexed the home page for a month (Doh!) so it is hard to say with any certainty what was affecting what.
If you have another page on your site that has significant inbound links, I would like to it from that page and see if rankings don't change within one to two weeks.