The group's principal activities are the provision of digital marketing and advertising solutions and advertising technology tools. these products enable the customers to optimize their advertising and marketing campaigns on the internet and through other media. the group operates through two segments: media and technology. the media segment provides marketing solutions for advertisers and web publishers. the technology segment serves the marketing communications industry by offering technology solutions for digital messaging and support services. the group operates in the united states, japan and europe. during 2001, the group acquired z media, inc. and mediaplex, inc. and be free, inc. in 2002. media accounted for 92% of 2001 revenues and technology, 8%.