'Site Inspector', and 'Hotkeys'

Site Inspector

Site Inspector is a web browser that combines the two most frequently used browser engines (Internet Explorer and Mozilla/Gecko) into one program. Its advanced web page analysis features make it the perfect companion for webmasters and web developers. Site Inspector works like an x-ray device, allowing you to peer into the working of website pages and expose their secrets. With Site Inspector's very own browser, the Analyzing Browser, users can switch between the two browser engines with just one mouse click, e.g., to compare the rendering of a page in both browsers. The sophisticated web page analysis functions -- which also integrate into Internet Explorer and Firefox -- make analyzing and debugging web sites easy.

http://www.paessler.com/psi

Hotkeys

Hotkeys builds on the concept of Windows shortcut keys but takes this concept to a whole new level. Do you think key combinations are hard to remember? Just hold the Windows key for three seconds and up pops a keyboard with icons on the keys that are configured. And it does much, much more to significantly improve your experience when working with Windows.

http://qliner.com/