Today, I want to recommend three fun sites.

aa.com
First, I have interest about travel. I went to go abroad every long vacation. At that time, I use American Airline because I have the mileage program. When I check my mileage, I feel happy. Also I have a credit card. The credit card makes connect to the mileage program. If I use the credit card for shopping, I can accumulate mileage.
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http://www.apple.com/itunes/download/
Second, I use an i-pod. I always buy music by i-tune. This site is very convenient because I can buy new arrive music at home. However, this site is a little bit weak for Japanese music. Therefore, I use i-tune and mora. Both are the site which sale music by internet.
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yahoo.com
Finally, yahoo is my main page of internet. I always use yahoo when I search something. In addition, I have a yahoo free account. Everybody can make an account in yahoo. Yahoo has another fun site, there are weather site, news site. There are very convenient for international students.