Do you start a forum or a blog? 

Do you start a forum or a blog?

Blogs are good, but remember they are sometimes useless information. I've seen many blogs, where topics are unrelated and uninformative. Usually people make blogs, without real knowledge or ideas about anything, they just exagerate and lengthen a 1 sentence idea to 5 paragraphs for no reason. While posts are just there for ideas and information and not useless. (atleast not always).

However, getting started is hard part. Usually it should be started by a group of people who are friends and made the site together. Trying to start a forum on your own is hard, unless you get lots of traffic. Blogs are unprofessional, there is NO such thing as a professional blog, a professional blog is called an article.

I believe articles are 10x better. Blogs are usually for things people experience, or questions or problems they have. Almost like a really long forum post, while articles are for information, teaching, and educational, and are usually knowledgable authors.