Facebook Permissions: What Marketers Need to Know
By Jim Belosic
Published October 15, 2012 
Do you use Facebook apps to collect data from prospects?
Do you understand the pitfalls?
This article will explore the ins and outs of Facebook permissions and reveal five key points marketers need to keep in mind.
So What Exactly Are Facebook Permissions?
Facebook Permissions are a Facebook feature that allows the social network and businesses that use Facebook for marketing purposes to collect information about users.
When a user agrees to “allow” Facebook, or a business, to broadcast a user’s Likes or other information, the user has granted Facebook permission to do so.
By the way, Facebook Permissions are not only on custom apps. Any time that you connect to Facebook from an outside website—such as Strava, a fitness training site—you’re giving that website permission to access your basic information on Facebook.
Strava is a fitness-tracking website that allows users to use a GPS device to track activity, then view the activity on the Strava website. Strava allows users to sign up using Facebook, and users are prompted with Facebook Permissions they must accept to sign up.
Using Facebook to Mine Data
With each data field a business asks for online, the opt-in rate drops by 10% (I heard this from a Facebook product engineer).
That means if gaining access to your app requires customers to tell you anything at all, you could lose 10% of your potential users right off the bat.
Ask for an email address and lose 10%. Ask for a birthday and you lose another 10%. Ask to access their friend list and another 10% are gone.
The quick math here? Ask for five pieces
Article source: http://www.socialmediaexaminer.com/facebook-permissions/
