My friend Mitch Joel shared an interesting link via Facebook and I found it to be a great example of how we can use research to trigger online sharing and investigation.  In the wake of my latest case study, Twittamentary (coming soon from ECCH), I am on the lookout for examples illustrating how we actually trigger the online contagion.  Look at What Yahoo has done with its Small World experiment.

• Great question to capture our attention
• Simple registration and sign-up
• Drawing upon peer-to-peer requests (which may be more influential)

One of the lessons I learned from Siok was to ask a very simple question that people can immediately act on.  This example illustrates the principle well.

Certainly this ads up to some great PR for Yahoo and I am excited to see the results.