Real WebInfo   
by PwCC Man Software (Shareware Dept.)   

Real WebInfo gather detailed domain information on any website, directly from within Internet Explorer!
It adds a new toolbar button, that lets you retrieve a wealth of background information for the current website, including geographical location, IP Address (support muti-IPs), server type, last-modified date, server date, Whois info, Alexa statistics, Whois Source, Google Backward Links, Google Similar Pages, IP Neighborhood (what other websites are hosted by the same ISP), Reverse IP (what other websites are hosted by the same IP) and more.