First of all, you need to make a thorough research on internet to find out the legitimate and reliable websites that offer money for browsing ads.
There are a huge number of scams on internet and chances are pretty high that you will become a victim of any of these scams if you do not make a proper research.
However, there are a few websites which are reliable but you have to find out these online portals. Make a thorough research and also join different online forums about earning money from online which will help you to get information about the reliable online portals that offer money by browsing ads.
After selecting a particular website that offers money for browsing ads, you should read the reviews of different people about that particular website as it will help you to verify the authenticity and reliability of the website.
Usually websites that offer money by browsing ads require their members to have their accounts on PayPal or some other relevant money transferring services.
Make sure you have read the payment procedure by going to the payment section of your selected website and then read the terms and conditions. Fulfil their requirement in order to receive your money in a hassle free manner.
Two most prominent websites that pay money by browsing ads are InterAdmedia and Clixsense which are generally considered authentic ones. However, make sure you read their terms and conditions and sign up if you feel comfortable.