In a strange twist of events it appears that Google added “MySQL” (TM) to the list of Trademark Terms making it illegal to use in Google Adword campaigns. I am sure this is not going to sit well with thousands of companies that deliver services or add-on products in the MySQL ecosystem. There is good evidence that people don’t like it much on the forums. You can still bd on MySQL as a keyword … just can’t use it in the advertizing itself.
MySQL is a Trademark of SUN Microsystems.