My new catch word is WORM. Write once, read many. You do the work once and earn from it multiple times.

Like writing an article, and then tweeting about it, and then Google picks it up and you start getting a steady stream of traffic to that article and you continuously earn money from the AdSense ads (or affiliate links) on that page - it's WORM.

I don't say passive income any more because it's not actually passive - you have to work at least once for it. But it can definitely be WORM. You do the work once and earn from it many times.

Or maybe it should be WOEM - write once, earn many!

Or even DOEM - Do once, earn many. I'm DOEM'ed ;)