Whenever I come across something new, I try to note it down in a text file so I can refer to it at a later point of time. Up until now, I was using flat text files and edit them using gvim. But this approach has some drawbacks:
All these shortcomings are solved by using [https://packages.debian.org/jessie/zim zim] editor. It allows to store notes in a wiki like format with links etc., but without the actual headache of setting up a wiki engine. The cool part is that the underlying text files consist of minimal markup and are easy to read in gvim should the need ever arise.
Google searches I used while trying to find an editor like zim | store notes in mediawiki format, running a mediawiki locally linux, local wiki