Early Results from Facebook Exchange Show 10-20x ROI for TellApart Clients(tellapart.com)
tellapart.com
Early Results from Facebook Exchange Show 10-20x ROI for TellApart Clients
http://tellapart.com/early-results-from-facebook-exchange-show-strong-roi
1 comments
Profit vs spend ratio, or revenue vs spend ratio? Very different things.