For example, at the time of this writing, we tested the tool using the phrases: “Web analytics” and “Web metrics”. The use of the phrase “Web analytics” has increased dramatically over the past four years while the use of the phrase “Web metrics” has decreased.

How can you harness all this data? Suppose you’re trying to figure out which product attribute to emphasize in an ad or on your website? As an example, this tool could help you figure out what’s more important to your audience: reliability, safety or price. Type in your terms, and see which ones resonate more with Google’s searchers.

Need more advice? Google gives you a great how-to guide here.

The AdSense Calculator lets you examine the interplay.

Just fill each of the fields, and it’ll return estimates of your daily, monthly, and yearly earnings and clicks; for making projects (or for deciding whether or not to use AdSense), this can be quite helpful.

Adsense Calculator Tool © SEO Chat™ Page Impressions Daily Page Impressions Click Through Rate Click Through Rate (%) Cost Per Click Cost per click ($) Enter Captcha To Continue To prevent spamming, please enter in the numbers and letters in the box below Report Problem with Tool.

• AOL Hot Searches – Top current queries, or see those in the last hour, last day and within particular categories.
• Ask IQ – See top searches at Ask.
• Dogpile SearchSpy – Choose to see either a filtered or non-filtered sample of top, real-time search terms from this popular meta search service. Sister site MetaCrawler offers a similar MetaCrawler MetaSpy service.
• Google Trends – Allows you to tap into Google’s database of searches, to determine what’s popular. View the volume of queries over time, by city, regions, languages and so on. Compare multiple terms, as well. See our review: Google Trends: Peer Into Google’s Database Of Searches.
• Google Zeitgeist – What people are searching for at Google and its associated specialty services in a variety of categories. There are versions for various countries, as well.
• Lycos 50 – Long-standing service showing top searches at Lycos each week.
• Yahoo Buzz Index – Shows you what’s hot and what’s not in terms of search topics at Yahoo.
• dWoz Search Phrase Lists – Great directory of services like those above, for search engines large and small, across the web
• Google AdWords Keyword Tool – Enter a term or terms, the use the drop-down box to see the popularity of terms and popularity over time.
• Yahoo Keyword Selector Tool – Formerly called the Overture Keyword Selector Tool and the Overture Search Term Suggestion Tool before that, this free service is primarily designed to help advertisers who wish to select terms to target with ads on the Yahoo network. But you can use it to see how popular particular terms are.
• Researching Keywords – For Search Engine Watch members, this provides an annotated rundown on key tools useful for search marketers needing to perform search research for their campaigns.
• Search Term Research and Search Behavior – These categories of Search Engine Watch’s Search Topics area compile articles on the subject of how people search from across the web and stretching back to 1997. Available only to Search Engine Watch members.

There is a tool available to help you do this quick and easy. The Search Combination Tool takes your key or main phrases with your secondary keywords. Try it, you’ll like it – and all the time you save!