Inquisitor is a free browser search plugin for Safari, Firefox and  Internet Explorer. The application shows instant results as you type along with keyword suggestions.

You can easily customize and set any site as your main search engine, add additional sites and query them directly from the toolbar using assigned keyboard shortcuts. It also shows personalized links based on your browsing history, these links display info such as the number of times and how long ago you have visited particular webpage.

Features:

• Instant search toolbar. Shows instant search results as you type.
• Suggests keywords as you type.
• Lets you use any site as your default search engine.
• Add additional sites and query them using keyboard shortcuts.
• Number of search results and keyword suggestions can be modified.
• Supports Safari, Firefox and Internet Explorer.

Check out Inquisitor @ www.inquisitor.com