There are thousands of music Web sites on the Internet. There are some sites in which the music is bought, and some have free music. Some are legal Web sites, and some are, well, not so legal. Jango is a new radio Web site in which the music is free and legal.

Jango.com is a Web site that offers music along with a social network. After signing up, the user enters in an artist’s name and then one of that artist’s songs begins to play on the user’s station. Similar artists are also shown for the user to add. For example, if an American Idol winner is typed in, then other American Idol winners would be shown.

When a song is being played, the user can say whether he likes that song or not by clicking on a smiley, serious or sad face. After a while, the site learns what types of songs a user likes, and plays those songs.

Founder Dan Kaufman said, “Jango is a free and easy way to play music that you want to hear.”

Kaufman had the idea for a music Web site like this about a year ago. He said he wanted a way to listen to new and different types of music while interacting with others and learning new music through them.

One of the reasons that Jango is different from other music Web sites is the social network that it offers. Users create profiles and can add friends, like on Facebook or MySpace. Friends then can e-mail, message each other and have access to each other’s music.

“Being able to listen to other people’s music is a good way of finding new music to listen to,” Kaufman said.

Another feature of the site is the profile page of each artist. The page shows pictures, videos, a bio section and songs from that artist and other similar artists.

Kaufman’s Web site, which was merely an idea a year ago, now has 400,000 users.

He said, “Jango is a success because it gives people what they want. If they want to listen to new music and different types of music, then that’s what they get. But if they want to listen to artists and songs that they are familiar with, then they can get that too,” he said.