I did two presentations at Barcampp in last week. One is for people who starts learning about the web. I talked on many basic concepts, the history, and how the web works. Some of friends complained me that my slide is too much. Anyway, I think I missed several main points. I just feel it is a prime concept of the web, and it drives me really well since I started learning it. The other is about JavaScript in OOP way. It is the same topic but very compact as I used to do presentation in my office. I did fairly good with borey since some of the audiences interest my presentation.