Dave Elliott: just make sure you are using the most recent version of yoast as there has been a security scare with it recently.
Nebojsa Djukic: + ;With regards to your question about "increasing site CPC" - we're not sure what exactly do you mean, so please clarify the question.
manjinder kaur: I mean the cpc of my site is very low ,its about .05 but few months earlier it was .15 .What Happened i don't know ...So i am confuse
Nebojsa Djukic: You're talking about adSense clicks I guess. It depends much on your niche and interests of your visitors. For example a website about finance will have better cpc than a celebrity website. A drop from .15 to .05 is not a really big change. On my websites cpc jump from 2 to .10 and vice versa. It's nothing to worry about. Just increase your traffic and be patient. You'll achieve much better CPC than 15 cents.