If you access a link requesting that you DL the Zango software, click cancel. You will get a warning that you won't be able to view the content but this is, in my experience, untrue... For example: many of The Riches links ask for you to DL Zango, I say no and the ad disappears leaving me to continue my regular viewing without further interruption. I think it's just a scam.
This content should all be free. There should not be conditions to the viewing, please delete any sites that make you download Zango before proceeding.