Comments on Sheryl & Mark: Facebook's Odd CoupleTypePad2010-10-03T19:19:23ZJohn G. Agnohttps://coachingtip.blogs.com/career_women_coaching/tag:typepad.com,2003:https://coachingtip.blogs.com/career_women_coaching/2010/10/sheryl-mark-facebooks-odd-couple/comments/atom.xml/