publication of books, texts, magazines, journals, bulletins, newsletters, and reviews; publication of magazines, journals, bulletins, newsletters, and reviews in the legal field; electronic publishing services, namely, publication of text and graphic works of others, on CD, DVD, CD-ROM, CD-R, and on-line, featuring legal subjects; arranging and conducting conferences, congresses, seminars and symposiums in the fields of oil, gas, energy and natural resources, technology, taxation, corporate governance, project finance, banking, dispute resolution, intellectual property, environmental protection, marketing