Elitesoccerconditioning.com - website is organized by training (speed, fitness, stretching, etc), player skills (drills by skill and position), and tactics/coaching (formations and coaching methods).
Justsoccerdrills.com - website is organized by drills on different sized playing areas (circle, half pitch/penalty area, grids/channels, large square rectangle). Drills then have a brief description to tell you if it’s for passing, passing/possession, dribbling, dribbling possession, etc.
SoccerDadApp - an iPhone/iPad app that was created by someone in the area. In-House and Rec coaches could find helpful, especiallly the part about setting up weekly line-ups to keep equal playing time across the season.
Soccerxpert.com - website is organized by drills, tips and skills as well as age groups. Drills are also ranked by readers.
Strongsoccer Drill Videos
UEFA Training Ground
US Soccer Curriculum - U.S. Soccer Federation new coaching curriculum for coaches of players ages 5-12. Youth Technical Director Claudio Reyna offers "age-appropriate roadmap" for player development.