LinkedIn’s sterling quarter shows that core social networks are good businesses. Notice I said “core.” Facebook has established itself as a critical communications and photo-sharing hub for consumers – regardless of the fact its platform technologies drive third-party businesses. There’s no equivalent “necessary” social network for commerce or local.
LinkedIn lives off job networking, and looks irreplaceable. I’d still like to see proof LinkedIn is a professional communications or content necessity. And LinkedIn could do more about building a marketplace for selling business to business services.