On October 2008, we launched a group on LinkedIn. To be honest, neither Jacques nor me hoped it would be so successful. It was kind of a new experience at DS but we thought it could be a good way to connect, not only our Partners, but also with our users and all those interested in PLM and DS products' complimentary offers.
So, almost 5 months later here we are: we have just welcomed our 700th member and became (as of to today) the first PLM-related branded group on LinkedIn! As a matter of fact, even though we are more looking for quality rather than quantity, I must confess that the DS Alliances Team is quite proud of it! Customers, prospects, engineers, software/hardware/services partners, resellers, students, DS people... are part of the group! Even our competitors want to be part of it (using sometimes the craziest stratagemes to fool us 
)!
Many topics are discussed by all those people: info requests on DS Partners' products or (including products, releases, events,...), the future of CAA V5, specific usages of PLM in particular industries, and also job offers all over the world. We are proud to see that some of our members managed to establish a business relationship thanks to our LinkedIn group. It was (and still definitly is) our primary goal!
I really think this is a unique place that gives you a wide range of opportunities in terms of business and knowledge. And, guess what: it is completly free! You just need to create a (free) profile on www.linkedin.com and ask for joining the group PLM MarketPlace!
Now it's your turn!
Anthony