Uncover Your Competitors Link Networks
Mr. Bill has released a new tool which can be very useful in uncovering your competitors link networks. The tool, Sites on My IP, allows you to view every domain which is hosted on the same IP address as the target domain.
Go to the Sites On My IP web site and enter your competitors web site in the search box; you will receive a list of other web sites your competitor might own.
Some shared hosting platforms share one IP address among multiple customers, but usually you will find only domains owned by your competitor.
Sites On My IP also has some other useful tools for you: