Harold. Thanks for an invaluable piece of work which should start a valuable dialogue with anyone interested in enterprise social networks. Yu are right that enterprise social networks are not the same as consumer social media and I like the way you make it clear that the value in enterprise social networks comes from moving from capturing knowledge to enabling action. And that this is best done by having the right mix of social enterprise tools. Too many people get fixated on one tool or technique rather than seeing the bigger picture. I look forward to reading more in the future. Thank you.