What is beat-by-beat guide", please? Does it mean "step-by-step" or alphabetical one? Thank you.
Actually, there is no context here, just a description of an internet resource:
"PowerReporting.com: Thousands of free research resources for journalists, updated daily. Categories include people finders, search tools, email alerts, beat-by-beat, etc."
I'd guess that there it means up-to-the-minute reports [possibly to do with popular music].