I have to admit I wasn’t aware of any serious enterprise social networking solutions before I came across Lotus Connections product from IBM. It has rich feature set including: profiles, communities, blogs, dogear (bookmark sharing) and activities.

Lotus Connections isn’t a recently developed product, it is a combination of various internal tools and utilities that IBM were using for quite some time already. What IBM did, is they packaged all those nice little “HR type” products in to a commercial package and made it available for sale. Apparently the system is used at IBM internally and proves to be very efficient.

I’d also recommend watching this introduction video: