MarketingSherpa are conducting a survey that probably will interest you folks, it's about Viral advertising, do you do it? If so how? And how much do you spend doing it?
Go to their survey here and answer a few questions, and the results from the survey will become a special (free!) report on viral marketing.
Plus, if you've conducted a viral campaign, you can also submit the campaign to be included in their upcoming Viral Ad Showcase so everyone can see the glory of your strategy and creative! ;)