There's more to Toolbar than just web search, pop-up blocking and auto-filling web forms. With the recent release of Google Toolbar 4, millions of Toolbar users are now adding custom buttons directly to their browsers. You can help users visit your site (and more) with just a click.
By adding your website's custom button to the Google Toolbar, people can instantly:
* Visit your website
* Search your website by entering a query into the Google search box and clicking your custom button
* Get the latest feeds from your website by clicking the drop-down menu next to your custom button
Sound daunting? It shouldn't -- creating a button is actually quite simple. Just go to our Getting Started page and submit your button for display in our Button Gallery. We already have over 700 custom buttons. Who knows? Maybe yours will end up on my Google Toolbar!
source :
http://adsense.blogspot.com/2006/08/just-click-away.html