This page lists more links which got more unimportant over the time. See website for major links.
The following chat channels got more unattractive in favour of Whatsapp and Facebook. For completeness and since I am too lazy to make a fresh new website with up to date information, I list them here.
(If you were looking for a postal adress, take a look at my university website)
Since I'm not so happy with this umlaut domain (I doubt you can type it on your keyboard if you are non-german), I prefer linking to purls for long time links.
These are some websites which hold further content that I have once created. I don't link to any social networks anymore, it's not so hard to research for yourself. By the way, I prefer e-mail for communication.