Here's another article, "The Semicolon Slut":
http://www.interrobangzine.com/essays/semicolon-slut/
. . . and I'm not sharing the link because I happen to be this issue's (the journal's latest one) Featured Poet and therefore they posted online three of my five poems that are in the print edition. However, that honor is why I found and read this semicolon article in the first place.