I don't even remember. It was around 2000, I was 15 or something like that. I think I heard about it from my brother and a guy running local computer store hooked me up with my first distro, Mandrake I believe. I remember searching for things like 'printing how-to' on HotBot using links (I didn't learn English in school so reading all the man pages really helped me with the language), setting up IRC bots using screen and irssi/BitchX, burning cds using mkisofs | cdrecord and generally having a lot of fun. After some time I would switch to Windows mostly to play games but when Country-Strike started working in wine I pretty much stopped using Windows. There was a small Linux/open source conference in my country and I gave there a talk when at a university. Couple years later when I was looking for my first job I ended up in a interview with some guys that went to this conference a lot. I got the job and since the company was very Linux oriented and never had to use Windows there. Now I'm still working in IT and use Linux exclusively at work and at home.