As many brands have spent the past several years engaging with customers and prospects on social networking sites, marketers have a good idea of what gets web users to connect. Typically, social networkers say they make “friends” with or follow a brand’s posts to find out about special offers and deals, and current research is consistent with that reasoning.Research has also been fairly steady on why consumers sometimes choose to un-friend brands. Engagement advertising firm SocialVibe found in October that one-third of US internet users who had ended a social connection with a brand did so because the company simply posted too many updates.

via Update Overload Remains Brands’ Biggest Social Danger – eMarketer.