42 Technical consulting services, namely, software development, computer programming, implementation of computer hardware and software systems for others, computer software design, updating of computer software, installation of computer software, maintenance of computer software, all in the field of advertising for use in display advertisements and video advertisements dissemination, computer-based display advertising optimization and bid management, content syndication, audience data analytics, video retargeting using cross-media tracking attributes via insertion of offers and marketing content that is delivered via personal computers, tablet computers and mobile computing devices; Providing on-line, non-downloadable computer software in the field of advertising for use in the dissemination of display advertisements and video advertisements, computer-based display advertising optimization and bid management, content syndication, audience data analytics, video retargeting using cross-media tracking attributes via insertion of offers and advertising content therein, all via personal computers, tablet computers and mobile computing devices; Design and development of computer software for others, namely, design and development of software to display websites and advertisements on the internet and to conduct e-commerce transactions for advertising, marketing and promotion purposes; Providing online non-downloadable computer software, namely, software that creates, manages, administers and monitors the status of online marketing and advertising campaigns for others