What are people searching for? What are the most popular things searched for? Which search terms are most used? What do people search for? What words are the most searched for? What are the most popular searches?
Now then - I am not sure if this is going to be of any use to you or wheher it will just be a big waste of your time! Nevertheless please find here links to things that you may be able to make use of when it comes to keyword research and related issues.
Google zeitgeist Google Zeitgeist "Google calls it the spirit of our times - see what you think?
Google Trends Google Trends allows you to look into what search terms are made and the volume of such search terms according to time - region - language etc
Google insights Google Insights allows you to refine your research on Google trends to more spcific data.
Google Trends for Websites Google Trends for websites allows you to search for what people are searching for on specific websites.
Google Hot Trends Google Hot Trends allows you to see the top 100 search terms on Google.com today. Note the Google Hot Trends feature is restricted to US based searches and is updated hourly.
Ask IQ Ask IQ is Ask's top ten search terms in various catgories for the last week.
Lycos 50 Lycos 50 is the Lycos Top 50 of the last week RE search terms
Dogpile Search Spy Dogpile Search Spy allows you to see what people are searching for on Dogpile at this very moment. How accurate this service and that statement is I do not know for sure I just repeated what Dogpile said on the page in that link and can not substantiate if that statment is completly accurate or not until further notice.
Yahoo Buzz Yahoo Buzz is another hourly updates search insight service that I assume is also US based like the similar Google one.
More to come in this post as I uncover the best "Free Search engine research tools"!