You've probably read the same threads I did at the zoo.
Zanga is indeed spyware/adware/malware. From what I gleaned...
It's an 'install' frequently packaged with something else a surfer might actually want...like porn movies. There are quite a number of really foolish webmasters peddling this crap...either not realizing what it does, or saying fuck it and taking the quick buck.
Upon installation, a db is downloaded to the users computer and linked to their browser. Every page that's loaded into the browser is scanned and crosschecked with that db. Keyterms that show up on the webpage are then linked to an zanga affiliate code. Surfer clicks and buys...zanga affiliate gets the sale. Now, if that's not bad enough...links being effectively loaded on your pages...it gets worse.
If a surfer clicks on one of your links and something in that link (like a paysite name) matches the db, a popunder is launched seconds after the click...thereby overwriting your affiliate code with the sponsor (since it's the second code received by the affiliate tracking system.) If the surfer buys, the zanga affiate gets the sale...not you.
There was a big stink on myspace about something they pulled recently...I don't know the details...other than a lot of computers were infected. From what I read, there are currently millions of computers infected with this crap. Kinda starts to make sense why sales have dropped off and continue to drop
