When a new article or news story is posted to Mexico-On-Line, the FeedBurner system will generate an email to you the following morning. If several new items are posted, you still only get one email, with links to all the new content. The system is self-managed and you can unsubscribe from these alerts whenever you want (the links to unsubscribe, etc. are in the emails).
Mexico-On-Line will never sell your email or send "SPAM" through this system - however some content updates may be for special deals or services that relate to Mexico travel.