A professional or trade publication usually fits these criteria:
Articles are written by members of the profession or trade, or by specialized journalists or technical writers.
Articles are written for other members of the profession or trade. Language may include jargon and terms that are commonly used in the profession/trade. The author will assume that the reader has a certain level of knowledge about the field.
The purpose of the article is to inform those working in the field/profession of events, techniques, and other professional issues.
Articles may occasionally include a bibliography.
Trade publications are often published by the professional/trade associations for the field.
Suggested Trade Publications
There are various trade publications dealing with the grocery and mobile markets. Try going to these sites and searching for information on mobile marketing. Suggested titles include:
Grocery Headquarters is the leading monthly supermarket magazine focusing on industry issues, new products and merchandising trends in the grocery industry.
Mobile Marketer is the leading news publication covering mobile marketing, media and commerce. Its goal is to help readers and marketers understand how the mobile channel can be used alone or in conjunction with other channels for branding and customer acquisition and retention purposes.
This group provides news and market trends for trade associations, national supermarket chains, and regional supermarket chains, as well as independent grocers, wholesalers, and distributors. It breaks the industry down into various groups - i.e. dairy, frozen food, bakery, produce, meat - and discusses trends and new topics in each of these fields.