Wikipedia, the online community-edited encyclopaedia, is starting to include entries on institutions, people and work associated with the advertising and design industries. Articles on people, institutions, companies in the creative industry are accepted by the Wikipedia community with a few conditions. Entries will be deleted if they are seen to be used as a means of propaganda and advertising. They must be written in an objective and unbiased style. External links to commercial organizations are acceptable if they identify major organizations. Articles should rely on reliable, third-party, published sources with a reputation for fact-checking and accuracy.
Checking out Advertising agencies by country in the English-language edition will reveal that the bias is towards advertising agencies of the United States. The Advertising Agency article includes material on full service, interactive, tradigital, search engine and social media agencies.
Blogs are rarely allowed their own articles in Wikipedia, unless they have been referred to in published sources and have a significant following.