Pat O'Brien

Keep visitors on your website longer and get more traffic on your website by inviting your visitors to read random posts! It’s easy! Just install the randomPost plugin, and select the random URL slug you want to use. This URL slug will redirect your users to a random post of yours! We recommend using the word “random” as your URL slug, but the option exists to use any slug you’d like. Once configured, add the new URL with the slug to your menu as a custom link. That alone will invite visitors to stick around.
To add on top of that, we’ve added a configurable hotkey! If a visitor presses R on their keyboard, it’ll automatically load a random post! You can change the hotkey to be any key you’d like. To add a little more fun to your website, put a notice telling visitors to “Press R to read a random post”.
Features:
<ul>
<li>Easily change the URL for the random post redirect. </li>
<li>Easily change the hotkey for the keyboard shortcut to read a random post.</li>
<li>Easily enable or disable the hotkey function.</li>
<li>Uninstalling the plugin will clean up all data it has stored in the WordPress database.</li>
</ul>

randomPost

Easily create a custom URL to redirect visitors to view random posts. Keyboard hotkey shortcuts also available for browsing random posts.

kenichisak

This widget shows current Google Hot Trends and Trends Forecasts for today and tomorrow. That is, current and future hot search words are automatically displayed in your pages.
Besides, if you have “Google Account”, you can regist your own Hot Trends Forecasts through <a href="http://trendsforecaster.appspot.com/" rel="nofollow ugc">http://trendsforecaster.appspot.com/</a> and these forecasts are displayed too.
<ul>
<li>You need to regist your <code>Forecaster ID</code> for above site through the <code>Widgets</code> menu in WordPress</li>
<li>Hot Trends for U.S. and Japan are being supported now.</li>
<li>You can regist your forecasts for 8 days later and beyond.</li>
</ul>
Because Top Trends Forecasters are also displayed in this widget, so you might obtain links to your page from all other sites which use this widget!

Trends Forecaster

This widget shows current Google Trends, Trends Forecasts and Top Trends Forecasters.

randomPost vs Trends Forecaster