In order to acquire user data, advertisers will be presented with an interface which will allow data retrieval using a wide range of selected filters such as geo location, age, gender, interests, expenses and more. The interface includes an API and a web based module that allows advertisers to acquire user data and manage their account. For each data retrieval, the interface will check the advertiser's Senno account to insure sufficient balance for the transaction, charge his account and distribute the revenue between the users who owns the retrieved data.