Question: Harvard Business Review and Seed are both what kind of literature?

Context paragraphs:
Harvard Business Publishing: Harvard Business Publishing was founded in 1994 as a not-for-profit, wholly owned subsidiary lof Harvard University (distinct from Harvard University Press), with a focus on improving business management practices.  The company consists of three market groups: Higher Education, Corporate Learning, and Harvard Business Review Group.  It produces print and digital products including "Harvard Business Review", Harvard Business Review Press Books, and case briefs, blogs, events and seminars, as well as a variety of online courses such as Harvard ManageMentor and Leadership Direct.

Michael D. Watkins: Dr. Michael D. Watkins is a Canadian author and leading expert on accelerating transitions.  Most notably, his works include the international best seller "The First 90 Days: Critical Success Strategies for New Leaders at all Levels" and "Your Next Move: The Leader's Guide to Successfully Navigating Major Career Transitions."  Dr. Watkins had been a professor at The Kennedy School of Government at Harvard University, the Harvard Business School, and INSEAD in France.  He is Professor of Leadership and Organizational Change at International Institute for Management Development in Switzerland.  He has contributed multiple articles to the "Harvard Business Review".

Bernard Avishai: Bernard Avishai is an Adjunct Professor of Business at Hebrew University of Jerusalem.  He lives in Jerusalem and the United States.  He has taught at Duke University, the Massachusetts Institute of Technology (MIT), and Dartmouth College, and was director of the Zell Entrepreneurship Program at the Interdisciplinary Center Herzliya in Israel.  From 1998 to 2001 he was International Director of Intellectual Capital at KPMG LLP.  Before this he headed product development at Monitor Group, with which he is still associated.  From 1986 to 1991 he was technology editor of "Harvard Business Review".  A Guggenheim Fellow, Avishai holds a doctorate in political economy from the University of Toronto.  Before turning to management, he covered the Middle East as a journalist.  He has written many articles and commentaries for "The New Yorker", "The New York Review of Books", "Harvard Business Review", "Harper's Magazine" and other publications.  He is the author of three books on Israel, including the widely read "The Tragedy of Zionism", and the 2008 "The Hebrew Republic".

Corporate social media: Corporate social media is the use of social media websites and social media marketing techniques by and within corporations, ranging from small businesses and tiny entrepreneurial startups to mid-size businesses to huge multinational firms.  In the 2010s, an increasing number of corporations, across most industries, have adopted the use of social media either within in the workplace, for employees, as part of an Intranet or using the publicly-available Internet.  As a result, corporate use of social networking and micro blogging sites such as Facebook, Twitter, Pinterest, and LinkedIn, has substantially increased.  According to an article by the "Harvard Business Review", "Fifty-eight percent of companies are currently engaged in social networks like Facebook, microblogs like Twitter, and sharing multimedia on platforms such as YouTube."  The Harvard Business Review cites an additional 21% of companies as being in the process of implementing a formal social media initiative.  The 2014 HBR report indicates 79% of companies have or will have social media initiatives in place.  This percentage is an increase over a similar 2010 report that indicated that two-thirds of companies had or would have social media initiatives in place.

Creating shared value: Creating shared value (CSV) is a business concept first introduced in "Harvard Business Review" article "Strategy & Society: The Link between Competitive Advantage and Corporate Social Responsibility".  The concept was further expanded in the January 2011 follow-up piece entitled "Creating Shared Value: Redefining Capitalism and the Role of the Corporation in Society".  Written by Michael E. Porter, a leading authority on competitive strategy and head of the Institute for Strategy and Competitiveness at Harvard Business School, and Mark R. Kramer, Kennedy School at Harvard University and co-founder of FSG, the article provides insights and relevant examples of companies that have developed deep links between their business strategies and corporate social responsibility (CSR).  In 2012, Kramer and Porter, with the help of the global not-for-profit advisory firm FSG, founded the Shared Value Initiative to enhance knowledge sharing and practice surrounding creating shared value, globally.

Seed (magazine): Seed (subtitled "Science Is Culture"; originally "Beneath the Surface") is an online science magazine published by Seed Media Group.  The magazine looks at big ideas in science, important issues at the intersection of science and society, and the people driving global science culture.  "Seed" was founded in Montreal by Adam Bly and the magazine is now headquartered in New York with bureaus around the world.  May/June 2009 (Issue No. 22) was the last print issue.  Content continues to be published on the website.

Harvard Business Review: The Harvard Business Review (HBR) is a general management magazine published by Harvard Business Publishing, a wholly owned subsidiary of Harvard University.  HBR is published 6 times a year and is headquartered in Brighton Watertown, Massachusetts.

Theodore Levitt: Theodore Levitt (March 1, 1925, Vollmerz, Main-Kinzig-Kreis, Germany – June 28, 2006, Belmont, Massachusetts) was an American economist and professor at Harvard Business School.  He was also editor of the "Harvard Business Review" and an editor who was especially noted for increasing the Review's circulation and for popularizing the term globalization.  In 1983, he proposed a definition for "corporate purpose:" Rather than merely making money, it is to create and keep a customer.

Harvard Business School: Harvard Business School (HBS) is the graduate business school of Harvard University in Boston, Massachusetts, United States.  The school offers a large full-time MBA program, doctoral programs, HBX and many executive education programs.  It owns "Harvard Business Publishing", which publishes business books, leadership articles, online management tools for corporate learning, case studies and the monthly "Harvard Business Review".

Vijay Govindarajan: Vijay Govindarajan (Vee-jay go-vin-da-RAH-jin; born November 18, 1949) is Coxe Distinguished Professor at Dartmouth College's Tuck School of Business and Marvin Bower Fellow, 2015-16 at Harvard Business School.  Govindarajan worked as General Electric's first chief innovation consultant and professor in residence from 2008-10.  While working at GE, Govindarajan co-authored a paper entitled "How GE Is Disrupting Itself" with Chris Trimble and GE's CEO Jeffrey Immelt.  "How GE Is Disrupting Itself," which introduced the idea of reverse innovation, outlines GE's attempts to embrace reverse innovation and gives reasons why companies, like GE, need to invest in these types of innovations, rather than just glocalization.  Govindarajan is a two-time winner of the McKinney Award for the best article published in "Harvard Business Review".  Govindarajan's writing has been published in news sources such as "The Wall Street Journal", "The Washington Post" and the "The Economic Times".  Govindarajan is the author of a blog featured by the "Harvard Business Review" where he discusses topics like reverse innovation and global business issues.  He is also the author of a column on innovation that is published by "BusinessWeek".  Govindarajan, along with Christian Sarkar, published a blog post on the "Harvard Business Review" presenting the idea of developing a $300 house that would replace the dilapidated residences of impoverished people around the world. " The Economist" noted that "the blog was so inundated with positive responses that a dedicated website was set up, which has attracted more than 900 enthusiasts and advisers from all over the world."

Supporting paragraphs: Harvard Business Review Seed (magazine)
Answer: magazine