Computer programming; Computer services, namely, providing an interactive web site featuring technology that allows users to create their own books; Computer software design; Computer software design and updating; Computer software installation and maintenance; Computer system design services; Conversion of data or documents from physical to electronic media; Data conversion of computer programs and data, not physical conversion; Data conversion of electronic information; Design of customized books; Digitization of documents; Installation and maintenance of computer software; Providing a web site featuring technology that enables internet users to book travel; Providing a web-based service featuring technology that enables users to manage the production and publication of electronic books (e-books) and related digital content and offer them for sale to the general public; Technical research in the field of aeronautics