GameMaster's Workshop

A series from Kenzer & Company.

From the publisher's website:
The GameMaster’s Workshop series provides source material designed for use with a variety of roleplaying systems, and contain valuable tools and aids to help make GMing easier and exciting for both you and your players!

From the introduction of Beneath the Waves, an item from this series:
Standard features of GMW include Close Encounters of a Random Kind (random encounter or event tables), Bait, Snare and Bag (brief plot lines for adventures presented in a simple format) and The Good, the Bad and the Ugly (detailed descriptions of NPC personalities, motivations and basic abilities).A multitude of new items (both normal and magic), spells, races and monsters are also included.