A non exhaustive list of technologies, programming languages, frameworks, operating systems, programs I have played with in my life:
ASP, Acunetix, Aircrack-ng, Apache, Assembly, Autopsy, AWS EC2, Bash, Batch, Burp, C, C#, C++, Cain, CouchDB, Cygwin, CSS, Debian, Dsniff, Eclipse, Ettercap, Flash, Foremost, Git, Google Apps, GPG, Haskell, HTML, IDA, Immunity debugger, Iodine, JAD, Java, Javascript, John the ripper, jQuery, JSP, Kismet, Mathematica, Matlab, Metasploit, Mimikatz, Miredo, MySQL, NASM, Ncat, Nessus, Netbeans, Nikto, Nmap, NoSQL, OCLhashcat, Ollydbg, OS X, Pascal, Perl, PHP, PL/SQL, Powershell, Prolog, Python, R, Rails, Ruby, SML, SOAP, SQL, SQLMap, SSLStrip, Stunnel, Subversi