This page is for my Network Security Tools and Tips/Tricks.
Have I Been Pwned! - A site to check if your email address has been in most of the public breaches
VirusTotal - Check Links or Files to see if it is a virus. This site checks your submission with 60+ AV engines. It also submits files to the next site for analysis.
Malwr.com - Used with VirusTotal to sandbox viruses to determine what they do. This is basically a hosted version of the awesome Cuckoo Sandbox.