Wikipedia:Wikipedia is not a soapbox

Part of "What Wikipedia is not".

Wikipedia is not a soapbox, a battleground, or a vehicle for propaganda and advertising. Therefore, Wikipedia articles are not:

1. Propaganda or advocacy of any kind. Of course, an article can report objectively about such things, as long as an attempt is made to approach a neutral point of view. You might wish to go to Usenet or start a blog if you want to convince people of the merits of your favorite views.
2. Self-promotion. It can be tempting to write about yourself or projects you have a strong personal involvement in. However, do remember that the standards for encyclopedic articles apply to such pages just like any other, including the requirement to maintain a neutral point of view, which is difficult when writing about yourself. Creating overly abundant links and references to autobiographical articles is unacceptable.
3. Advertising. Articles about companies and products are acceptable if they are written in an objective and unbiased style. Furthermore, all article topics must be third-party verifiable, so articles about very small "garage" or local companies are not likely to be acceptable. External links to commercial organizations are acceptable if they can serve to identify major corporations associated with a topic. Please note Wikipedia does not endorse any businesses and it does not set up affiliate programs.