what is the use of a proxy server?

[debasis]

I saw there are many proxy site - some r paid service and some r free.
So, my question is what is the use of a proxy server? why people use it?

Dear Paramita I know only about free proxy sites and i think there is no paid proxy sites available but one thing is there , you can purchase Unique Ip addresses for your web servers and that's called reserved IP this facility is give by most of the hosting sites like hostgator, host monster, godaddy etc... but for this u need to buy web server from their sites and have to pay for those unique IP addresses.

If you really need any good proxy site lists the please visit the following site where you will get lots of good working proxy sites and all are free and you don't have to pay for it and all proxy sites are very fast.
The link is : http://proxy.org/

You can also add their widget in your blog or in any sites and you can access any proxy sites from your any blog or websites and no need to visit any other sites.

I hope this will solve your problem.

Thanks.