This advice is going to sound pretty obvious to most of you, but I am going to share it anyway because there are people who are looking at the new gTLD domain names as an opportunity to make money from domain investing. Do NOT register trademark, non-descriptive domain names, and certainly do not offer grey area names to companies that have those trademarks!
Early on when domain names first became commercially available, there were people who registered domain names before trademark holders were able to purchase them. You can read one such instance in Wired regarding the registration of the McDonalds.com domain name. Later on, people registered trademark typo domain names in addition to other TM domain names, and they made money from