QUOTE(siva SEO @ Jun 19 2014, 01:16 PM)

Disadvantages of PPC
As i shared benefits of it now some disadvantages are..
This is so expensive to maintain
People tend to ignore sponsored ads
Heavy competition
PPC is prone to click fraud
PCC there no guarantee that visitors will click or ads .
This is so expensive to maintain-------Yes, especially for some high competitive keywords.
People tend to ignore sponsored ads-------Yes, I seldom click the ads when I use search engines.
Heavy competition---------Yes, even your ads can be listed on the SERP, many visitors may ignore your ads just because there are too many other ads.
PPC is prone to click fraud --------I cannot agree more, it will cost us too much!
PCC there no guarantee that visitors will click or ads .