Paleo Research sites--
Kurt Harris-- great paleoish research and info ( he is my fav actually for info)
Robb Wolf- Paleo Info and recipes sometimes
Everyday Paleo
Chris Kresser
Gary Taubes-- not paleo, but he is where I started. I really love his crazy amounts of research (his research is exhaustive in quantity-which I LOVE)
Gluten Free Sites--
Anit-Housewife
Glugle Gluten Free
Dish Towel Diaries
Elana's Pantry
Gluten Free Girl and the Chef