It’s the second most popular social network by some measures, but when it comes to sharing, Google+ has the least reach compared to its rivals, according to the latest data from the social media tech firm Gigya.
Facebook has pretty much become the Social Security Administration when it comes to unified online identities, thanks to Facebook Connect. Sure, not everyone or every publisher or every app developer use Facebook’s social sign-in, but the social network has positioned itself as the dominant online identity registrar.
Consumers have taken to logging onto their websites using their Facebook or Twitter accounts in droves. But in Washington, D.C., the increasingly popular practice, which allows a website or mobile app to get instant access to a consumer's account information from those social platforms, has raised privacy concerns.