Free codes does not work some times.You have only five unlocking attempts.If you put wrong codes many times, your mobile get hard locked.So better you will get the code from http://www.classicunlocking.com/  .It helps to unlock your mobile easily.

You can earn money online by reselling domains.If you are interested in this business get the reseller plan at http://www.goresellers.com/ ..Through this you will get the domains at cheap price & you can sell it to others.. 

Most of the free codes does not work some times..so better you will get a code either from your entwork provider or you may get it fromonline providers like http://www.prounlocking.com/  .They will help you to unlock your mobile easily.

You can unlock your Nokia N97 using codes.I found an unlocking service for your mobile at http://www.prounlocking.com/nokia-n97/rs16wp9/ .
You can use this and unlock your mobile easily..

You can unlock your iphone using the remote unlocking method..I found an unlocking service for your mobile at http://www.mobileunlocksolutions.com/apple-iphone-3g/rs16wp9/  .You can use this and unlock your iphone  3g easily.

There are many ways to earn money through online ..But i suggest domain reselling business.
If you are interested in this business get the reseller plan at http://www.goresellers.com/ ..
Through this you will get the domains at cheap price & you can sell it to others..

You can unlock your nokia E71 using the codes..I found an unlocking service for your mobile at http://www.superunlockcodes.com/nokia-e71/rs16wp9/ .
You can use this and unlock your mobile easily.

You can unlock your blacbkerry curve using the codes.There are many providers offer this unlocking service.
If you need get the unlocking service from http://www.classicunlocking.com/ .
It helps to unlock your mobile easily.

You can check the speed of the internet connection using the http://www.ip-details.com/ .It shows your uploading and downloading speed.

I know only paid service..Free service are not safe compare to others.

If you need, get the unlocking code from http://www.unlocking4u.com/  .It helps to unlock your mobile easily.