Writing within the Portal of the Computer Technology Laboratory at the Faculty of Technical Sciences in Čačak, I paraphrased Descartes – Cogito ergo sum. Today, one could freely say – I am on the Internet, therefore I exist. When such an opportunity presents itself to me, why not take advantage of it. That’s why I decided to share my thoughts and results of activities with the environment, through a personal Web presentation, which can be of wider importance.