Site statistics..........A variety of site-related statistics.
Charts...................Site-related statistics presented in graphical format.
Property statistics......JavaScript object property totals presented in tabular format.
Property support.........JavaScript property support in tabular format.
Linux....................Browsers running on a Linux distribution, such as Debian.
Macintosh................Browsers running on a Mac-based operating system, such as OSX.
Microsoft................Browsers running on a Microsoft-based system, such as Windows XP Home.
Handhelds................Browsers running on mobile phones and other handheld devices.
Rendering engine
Gecko-based browsers.....Browsers using the rendering engine originally developed by Netscape.
KHTML-based browsers.....Browsers using the rendering engine developed by KDE.
Browser evolution........See the version evolution of submitted browsers.
Browser timeline.........View the dates individual browsers were added to the database.
E4X support..............List the browsers supporting ECMAScript for XML.
XMLHttpRequest...........View the browsers which support XMLHttpRequest used in Ajax.
Spoofing browsers........View the browsers which have been identified as 'spoofing'.
User-agent listing.......See a list of all stored user-agents.
User-agent analysis......Look at the frequency in which patterns appear in user-agent strings.
Property frequencies.....Find out how many browsers support each property.
Property totals cloud....Look at a visual representation of property totals.
seehowitruns.org - the real-time reference for Web browser support of JavaScript