Overview
Frugal GM 
https://www.frugalgm.com/ is a long-running tabletop RPG blog focused on helping Game Masters run better games while spending less money. Its core idea is summed up pretty directly: it’s about “resource-saving options for running a better role-playing game.”
At its heart, the site is built around three main types of content:
1. Reviews of RPG Products
Modules, maps, supplements, tools, and even occasional games
Strong emphasis on value for money
Honest, practical evaluations (what works at the table vs. what doesn’t)
2. Free & Low-Cost Resources
Links to free maps, generators, tools, and downloads
Highlights of “hidden gems” you might otherwise miss
Frequent “Free GM Resource” posts
3. Practical GM Advice & Tools
Tips for running games more efficiently
Ideas you can plug directly into a session
Focus on usable content over theory