Introduced Mobile Marketing & Advertising at o2 (Germany) GmbH & Co. OHG : Operational and strategical marekting management for the Mobile Internet channel. Implementation, management and enhancement of the CRM and ad server system on the o2 Active mobile portal. Requirement managment regarding the tender procedure to commission a mobile marketing platform; conception and realisation of several mobile marketing and advertising campaigns. Representation of o2‘s interests at the association BVDW in the section „Mobile“ regarding Mobile Marketing and Mobile Advertising.