fgoogle.com

Typo of google.com. Used with other common misplellings as a tool for scam artists. They use the url for their ad, and construct said ad to appear as an error message, often claiming your computer is infected and you need to call technical support (their phony call canter of course). The ad is often difficult to escape as it will present a never ending cycle of "leave page or stay on page" or other similar messages.