Guidelines: (from their web site, www.dramabiz.com).

DramaBiz magazine provides the theatre industry with well-tested business tools and management perspectives to help them succeed in running their organization.
DramaBiz Magazine is a bi-monthly publication that examines the theater industry to help arts and entertainment organizations run their businesses better. The magazine serves as a forum for the national theater community, providing valuable information and inspiration. Each issue of DramaBiz offers essentials in trends, news, and daily theater operations. Following the drama industry since 2005, DramaBiz Magazine gives theater companies the advantage they need for success. All articles must be timely and relevant to the general operations of the theater craft.

Pay: 35 cents/word

They give assignments. I've worked with them once. Assigments are thorough and include leads on sources as well as questions the article needs to cover.