Engagement rates on Facebook are historically low, topping out around 10%-20% when the news feed is the sole promotional tactic. A recent Ad Age article outlined the way news feed items grow stale in about 1 hour and 20 minutes.
Great article about engagement rates and news feed visibility on Facebook. The emphasis is on paid media on Facebook (Ads and Sponsored Stories) but the thoughts, tips and caveats are well worth the read even for earned and owned media practitioners.
(Source: adage.com)
