Google Adwords is the system Google has developed to assist
owner of website in marketing his/her products or services
in the Google Search Engine, and its affiliate sites, via
the use of a text or graphical(Flash) ads that appears when
people search for phrases related to website’s owner offering.
The system(Google Adwords) is a “pay per click” system,which means
owner have to pay to google for every click that is performed by a
internet user. Actually google adword works on daily budget of website
owner with pay per click(PPC), for example if the owner want to pay rupee
300 for a day then his/her ad will be on google till there is balance in
his/her account.If balance goes to zero then ad will disappear.