Starting from today, I recommend you a few links from leading people I follow in the internet industry:
Neil Patel is one of the biggest names in Digital Marketing and recognized among the Top 100 entrepreneurs under 30. Creator of 4 of the world’s most popular SEO tools and author of one of the top Marketing blogs.
Percona blog is a top maestry blog informational in building high performance solutions for huge mysql installations.
I hope you enjoy PHP Konf, in May 20.