- 1.ARENA Copyright 2008 Alex Coman Alex@Coman.org Tel:(972)3-510-1768 -1-WWW.Coman.Org ARENA
2. Cost per acquisition: $233-$388For a $99 product. Fail. 3. Trailing 30 days (Apr 2010) : users sent2.8 million direct referral invites 4. Increase in recall jumped to 16% when adsincluded mentions of friends who were brand fans,and 30% when the ads coincided with a similarmention in users news feeds.