Introduce 3 Good Web Sites

I would like to introduce three interesting web sites to you. First of all, Wolfram MathWorld is very interesting and useful. This web site has a lot of information about math, and you can study many field of the subject if you use the web site well. However, if you are not interested in math or do not like it, it is not interesting for you, but I think that it is worth for you to enter the web site even if you hate mathematics. Second, You Tube is also very funny. You may have already known the web site. It provides you with many movies without paying money. In addition, the movies have many kinds of movies, like animation, TV shows, and so on. Moreover, there area lot of movies that are created by amateurs, and some of the movies are very creative. Finally, I will state about Wikipedia. Probably, you know the web site, and it provides you with many kinds of knowledge not only academic subjects but also comics, novels, and so forth. For this reason, you can know many things, but Wikipedia is a free encyclopedia, so everyone can write article in the encyclopedia. Therefore, you should not trust the article completely. Also, the web site is displayed in not only English but also many languages, such as Japanese and French; thus, when you cannot understand an article in English, you can read it in Japanese if there is the Japanese type article. I show you three of my favorites web sites’ URL below. Please refer to them.

URL
Wolfram MathWorld: http://mathworld.wolfram.com/
You Tube: http://www.youtube.com/
Wikipedia: http://en.wikipedia.org/