Popular Silver Pick Status at
RPGNOW!
Challenges and Rewards, by Josh Benton, offers a concise alternative experience system to reward players for resolving situations without combat.  This easy-to-use PDF provides a simple formula for calculating XP for non-combat challenges, as well as advice on when to use the system.
The following products have all earned Popular Copper Pick Status at RPGNOW!
World Building, by Julie Ann Dawson, provides clear guidelines to help create a functional, entertaining, and realistic fantasy setting. 
The Encyclopedia of Skill Lore provides dozens of non-magical books that help boost skill ranks.  Ideal for low-magic or no magic settings.
The Manipulative Player's Guide to Sympathetic Magic offers a unique alternative for low-maigc and no-magic campaigns.    Now you can heal your friends, curse your enemies, and more without casting a single spell!
Written By Robert Goodfellow and illustrated by artist Larkin Livesay, Trees of Fantasy offers almost two dozen unique trees to add to your fantasy world.  Each includes information of potential locations, how the wood is used, and story seeds.  Plus tons of new weapons, armor, mundane items, and more.