Seth Godin's blog is consistently outstanding. http://sethgodin.typepad.com/

I read the following blogs recently:

https://www.bleepingcomputer.com/

http://www.okpckit.com/

Jeremy Kunn has a great blog on distilling complex math ideas to primers anyone can understand. https://jeremykun.com/

Analysis of current economic conditions and policy: http://econbrowser.com/

Art of Manliness