Some sites I find useful and generally well-researched:
Uplift-Recylcing Bras to Women in Need http://www.upliftbras.org
Kindness cards http://wakeupproject.com.au/kindness-cards/
Yoga For Healthy Aging http://yogaforhealthyaging.blogspot.com.au/
Yoga Journal http://www.yogajournal.com/
Yoga International http://yogainternational.com/
The Daily Bandha http://www.dailybandha.com/
Harvard Health and Medical http://www.health.harvard.edu/
Mayo Clinic http://www.mayoclinic.org/
PubMed http://www.ncbi.nlm.nih.gov/pubmed
Northside Nutrition http://nnd.com.au/