regex101 : Free PCRE-based regular expression debugger with real time explanation, error detection and highlighting.
Fun Retrospectives : Activities and ideas for making agile retrospectives more engaging
Inj3ct0r 1337day.com : Exploit database separated by exploit type (local, remote, DoS, Poc, etc.)
Git Reference : This is the Git reference site. It is meant to be a quick reference for learning and remembering the most important and commonly used Git commands.
