No, I have not gone into the business of selling recreational pharmaceuticals. One way or another, a malicious entity got access to both my MySQL database as well as FTP access to my server. The links have been removed, the files restored, and (with luck), this will not happen again.
Should you encounter anything wonky or suspicious, please let me know by mailing theartguy [at] gmail.com.
(For the curious, I actually used this post by another victim to help fix my problem.)