How to Find Popular Keywords on Google

what's popular keyword? popular keyword is the keyword or keywords that someone typed on most search engines.
below there are several ways to find popular keywords in google you can use for optimization your web
A. Adwords
This is a place frequented Master SEO and Web Master. just tried here https://adwords.google.com/select/keywordtoolexternal

2. Google Insight

here we will know someone typing in the search engine last 7hari, 1 month and even last 1 year. just tried here http://www.google.com/insights/search/

3. Google News
this page to search for keywords recent days. just try here
http://news.google.co.id/

Actually there are many tools - Other tools can be used to search for popular keywords. that was a link which I always visit the weeks to search for popular keywords, primarily to increase visits to the website.
may be useful and do not forget to write your comment