Kettlebells

Agatsu
Dragon Door
Art of Strength
Lift Kettlebells
Kettlebell Exercise Guide
Perform Better
Canadian Kettlebell Magazine
Josh Hillis
Tracy Reifkind
Lauren Brooks
Yoana Snideman

General fitness & nutrition

SparkPeople
Stumptuous - Women's Weight Training
TRG Living Health
Alwyn Cosgrove
CrossFit
ExRx

Running

Runner's World
Map My Run
Couch to 5K
Couch to 5K podcasts
Athlinks
Foot Tools
Running Room