Jyotish

https://en.wikipedia.org/wiki/Hindu_astrology

Online
https://www.onlinejyotish.com/
http://www.jyothishamonline.in/

Blogs
http://jyotisharavi.blogspot.com
http://jyotishvishesh.blogspot.com/

Studio
http://www.youtube.com/user/JyotishStudio 

Jaimini (Rashi specific) with Parashari (Graha specific)
https://parasharjaimini.wordpress.com/
http://parasharajyotisha.blogspot.com/