- Get an approved adsense account
- Add advertisements on his/her website
- Now go to any VPN service (providing a PPTP)
- Use it to visit his own site
- Click on advertisement displaying on his own site.
To take advantage of this method, website owner can different VPN services over some time so as to not arouse any suspicion.
Some of the free services that can be used are:
and many others.
Note: This method may work on almost all adsense like services.