Setting up a website allows the purchaser to capitalize on any searches done for that name. For example, if John Jones has a thriving professional practice (perhaps he is a doctor, a lawyer, a financial professional, or real estate agent - or any other profession which interacts with the public on a regular basis), there is a high likelihood that potential clients will do some research on the internet before doing business with Mr. Jones. If Mr. Jones has been "name jacked", then someone else owns johnjones.com and that website will appear at or near the top of any searches for the name "John Jones." These "name jacked" sites are typically set up to sell high-profit items like ebooks and/or various business opportunities and require few purchases to be profitable. As the name-jacked domains are set up using non-trademarked names and they have a purpose other than selling the domain name back to an individual, they circumvent the "Anti-cybersquatting Consumer Protection Act" (ACPA) laws U.S.C. 1125 and U.S.C. 1129. Since people frequently "google" to find out information, name jacking provides low-cost web traffic to the name-jacked website.
Source: Wikipedia > Cybersquatting
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