The market for the new provisioning type Software-as-a-Service (SaaS) has reached a significantsize and still shows enormous growth rates. By varying size of SaaS products, providerscan improve their market position and profits by successfully acting in the tension area ofcustomer acquisition,...

Online social networks evolved into a global mainstream medium that generates an increasingsocial and economic impact. However, many online social networks face the question how toleverage on their fast growing popularity to achieve sustainable revenues. In that context,particularly more...