The document discusses how LinkedIn groups can be used to engage customers. It notes that 60% of businesses use social media for engagement with customers and prospects, 59% use it to influence their brand reputation, and 52% see new revenue possibilities from social media. The document also outlines Ariba's experience with their LinkedIn group for strategic sourcing and procurement, which has over 41,000 members, many at manager level or higher. It provides lessons learned about facilitating groups and engaging members.