If you are interested in publishing a magazine, the Magazine Software for Design infographic from Maghub is a good tool to help you get started. The infographic tells you the difference between vector and pixel artwork, and then recommends some programs to use in your process.
Magazine publishing software can be confusing. This infographic will help you understand what to be looking for when choosing software for magazine design.
Quick read, with all the basics you need to get started. Just like a good infographic should be. For some reason they broke the infographic into 3 separate sections as separate JPG images. This makes it MUCH harder for readers to share!
Thanks to Aaron for sending in the link!