i just knew that ppc is pay per click, google earn money by publish sponserd links. but how can we earn money through ppc ? how can we use it in seo ? plz help me to clear my doubt. Thanks in advance.
You can earn money from PPC programs like Google Adsense, if you have a website or blog. PPC and SEO are not related to each other.
They don't have anything in common PPC is when you pay the advertising company every time someone clicks on your links and adsense is when you become a publisher for advertising company, and people click the links in your website you get pay. i hope i explain everything clearly for you.
You can earn money trough Adsense Program if you got Website or Blog with some traffics on it. Check this out, maybe can help you to learn something from there: http://forums.digitalpoint.com/showthread.php?t=23238