Youtube is a big website for watching the free videos and movies.This website is becoming more and more popular now.Because everyone has a chance to record themselves in a video and become famous and the costs are really cheap.For me,in fact,I don’tlike to use Youtube,the reason is funny:first,the internet in condo is really bad and slow,and if I want to download somthing,may be it will cost one or two hours,sometimes,even longer!!!Second,not every video in Youtube is worth watching,and many of them are boring and useless.I still remember that last few weeks,I had a presentation for economics,and I need a video.So I just went to Youtube and wanted to find something useful.My topic is about GDP,and I need to taught my classmates how to calculate it.It is a diffficult work.I hope the video can help to solve this problem.However,the video that I found was so stupid.It seems that guy just want to waste some time.At last, I had to teach it by myself.Maybe I need to try more and then I can find the merit of Youtube.But anyway,as an example of Web2.0,we always find that both useful and useless information is a serious problem which disturb us a lot…
