what we should keep in mind while selecting keywords

Hi webmasters,

What are the things we should keep in our mind while creating metatag for a site.
whether it will be high density keyword or low density key word.

 

this is not an adwords question, go to the seo area

 

Your question doesn't make sense - keyword density is about the frequency it appears on your page - if it's too often your page looks 'spammy' to both visitors and search engines, if's it not on enough, it may not be clear to search engines that this is what the page is about.
And why does your poll have no relationship to your question at all?

 

try to make the keywords relevant to your website. that is a start

 

it will be batter to seperate your ads to ad-groups for each keyword 2-3 ads.
it will improve your CTR