It's my first entry in the diary, so I will introduce myself a little bit. I have studied physics (microelectronic) at University of Sevilla (SPAIN) and worked for some years developing software for analog layout synthesis automation (a placement tool). From 96 (last century) I have been spending more time working on internet subjects and from 2000 it became my main activity. If you want to know more about, visit my personal site on the internet at giroscopo.com