Every search engine has its own log of what the most searched phrase or keyword. Some of them publicize the log and some not. I found this log is useful when you want to start building a site or looking for specific interest for your site. Knowing the most popular search phrase is one way to generate massive traffic from search engine.

With proper SEO technic, you can listed at top position in search engine result page. This will skyrocket your traffic. If you also monetize your site, this kind of traffic will also boost your income.

Some of list I've found is

1. http://www.google.com/trends/hottrends
2. http://buzz.yahoo.com
3. http://50.lycos.com
4. http://www.imagine-msn.com/

You may also check this software if you looking for a complete keyword related program. With this special tool, you can easily find most searched keyword, highes paying and most profitable keyword and a lot of nice feature to help you achieve good position in search engine result page (SERP). Try it for free, take advance in trial period. With this tool, finding good keyword and optimize it for best result is easier even for the first timer.

Now after you know what is popular today, you can create article based on that phrase. Optimize the content so it can showed up in first page at SERP.