A few resources I regularly go back to
Troy Hunt - If you have even a passing interest in InfoSec, check out Troy's blog. A massive amount of excellent information about web application security, among other things.
Have I Been Pwned - An excellent resource for individuals and business alike for keeping track of the seemingly inevitable occurrence of being caught in a data breach.
SSL Labs - Go and get your certificate configuration checked out.
Wayback Machine - Check out how bad the internet used to look!