Protecting the Trademark by Buying Domain Names

There are many companies that buy every related domain name on the market as a measure to protect their Trademark. Is this method a good approach?

Chain Letters and Spam Email

Email Chain letters are one of the sneakiest and devious ways of SPAM. They ca be considered a particular case of social engineering.
Chain Letters target human weakness and the lack of information.
This article will explain why chain letters are bad and how to avoid them.