Question: What to Autograph Collector Magazine and Linux Journal have in common?
Related documents: [0]  [DOC] Autograph Collector Magazine is a U.S. magazine for autograph collectors. The magazine was started in 1986. They offer news, celebrity interviews and addresses, in-person signing event listings, counterfeit-detection articles, and in-depth articles on collecting autographs from people in various professions, from sports to Hollywood to business and more. The magazine is now a web-only publication. The print version was published on a monthly basis. [END] 
[1]  [DOC] Linux Journal is a monthly technology magazine published by Belltown Media, Inc. (Houston, Texas). It focuses specifically on Linux, allowing the content to be a highly specialized source of information for open source enthusiasts. [END] 
Answer: 
monthly
monthly