The Mobithinking blog suggests you consider far more than which the biggest
network is, rather focusing on:
• Where you want to advertise.
• What type of publisher you want.
• Whether you want to focus on budget or top of range.
• Whether you want to bid in a self service market or have your account
handled for you.
• How precisely you want to target your advertising (the more precise
the more expensive).
• What tools are available to track and optimise the campaign.
• The potential return on investment.
• How wide you want to cast the net?
(mobithinking 2009)