Alright, I’ll fess up: spam has never been just for email, in spite of our cluttered inboxes that loudly protest to the contrary. Spam’s early commercial origins point back to a message to 6,000 recipients on Usenet by a couple of immigration attorneys named Canter & Siegel from Phoenix, Arizona back in 1994 who were promoting their services to enroll people in the national green card lottery. From these roots, spam moved on to its dominant format today: email. Nonetheless, the flood of SMTP-based spam we see today may obscure the other flavors of spam that have popped up, including IM spam, SMS spam, and the Web 2.0 buzzword-friendly “splog”.
I’ll spare you all the gory details on IM and SMS spam, they’re pretty straightforward. IM spam has yet to reach major proportions, but it’s certainly out there, plugging spy software, ringtones, and other services. SMS spam has been highly visible overseas since 2001, especially in Asia where SMS has been used heavily for some...