• ASP Browser Sniffer
  in Public bookmarks with browser sniffer useful useragent
• Browser Detection
  in Public bookmarks with agent browser detection hotwired user useragent
• WebAIM: Blog - History of the browser user-agent string
  In the beginning there was NCSA Mosaic, and Mosaic called itself NCSA_Mosaic/2.0 (Windows 3.1), and Mosaic displayed pictures along with text, and there was much rejoicing.
  in Public bookmarks with agent browsers funny mosaic netscape sniffing string user useragent webaim

useragent from all users