6 Key Findings from the 2012 Nonprofit Social Networking Report… 98% have a Facebook page with an average community size of over 8k fans. Average Facebook and Twitter communities grew by 30% and 81%, respectively. Average value of a Facebook Like is $214.81 over 12 months following acquisition. 73% allocate half of a full time employee to managing social networking activities. [Tweet It!] 43% budget $0 for their social networking activities.