My Followings------- (Machine Learning)

• http://yaroslavvb.blogspot.com
• Hunch - Machine Learning Blog
• CS229 Stanford Machine Learning Course
• http://mlthirst.wordpress.com/
• http://work.caltech.edu/library/
• Machine Learning Dictionary
• http://deeplearning.net/

My Followings------- (social)

• Guitar Tube
• Quora
• Hacker News
• Bunch-It Clustering Search
• ordinarycomics.com

A good journal for the ones in the dilemma of having PhD.

• THE Ph.D. GRIND by Philip J. Guo

John Lloyd: An animated tour of the invisible (If you had the effort to come that page and the end of it, watch it for sure :)