Threshers discount offer gets out of control Doh! Someone didn't think this one through - the power of viral marketing revealed.

Can Viral Video Clips Drive Targeted Traffic? I wish I had the time, money and [not least] the skills to do this kind of research. Excellent stuff from a website that is well worth subscribing to.

Does Viral Video Translate to Marketing Success? lists 27 questions to help e-marketers determine how effective a viral with branding objectives has been.

I've put this one in this section - but [as with all viral campaigns] you should appreciate that more traditional elements of marketing had already been sorted [ie there was a quality product involved]. Naturally, Viral Videos: How Sawdust and $50 Created Marketing Success is a one-off - and I wonder how many sales this actually generated - but with a bit of original thinking it shows what can be done. And don't forget B2B applications, limited interest perhaps - but folks in trades [particularly 'boring' ones] love 'in' jokes.