Bad Neighborhoods is a broad term for groups of spam sites that may contain any of the following violations:

• Sites that utilize link or keyword cloaking
• Sites with excessive duplicate content, Scraper Sites, or those with clear violations of copyright laws
• Sites that are known to install viruses or malware
• Sites that are known to be link farms

• Server Neighborhood
• Links From Spam Sites
• Link Farms: The Bad Neighborhoods Of The Internet