Social networking Sites are becoming very popular these days. Once your site has become popular you can easily earn lots of money from the ads. You can place PPC ads like Adsense or Bidvertiser to earn money. There are many software which will help you to start your own Social networking Sites. If you have a bigger company located at different places you can create social networking site for your internal use where the employees can share the information. There are many companies that can provide you with social networking softwares. All you have to do is just enter some information and your site will be up and running. Using commercial social networking software can be an inexpensive. You don’t need to spend much amount. So if you just want a basic social networking site that you can use for everyday business it is better to start your own site.