Yeah, far as I understand the adWords quality scrore...some SEO on any site is not a bad thing. Not sure though...maybe some more experienced SEM pro could clearify...?
SEM uses search engine optimization SEO and pay per click advertising PPC to promote a website.Search Engine Marketing aims to improve the visibility of a website in Search Engine Result Pages SERP .
I read all answer but i'm not satisfied, so any person give actual answer about, what is difference between SEO & SEM.?