Blink
BLINK element flashes on and off uncontrollably in a distracting manner. The more content you place inside the element, the more difficult it is to read between the ongoing flashes. The Blink element is used to attract to the flashing text but actually it distracts users attention while displayed on the screen by the browsers. It is annoying to some of the users and it not advisable to use this tag. For Example:
<BLINK>Do not use BLINK element in your Search Engine Optimization process.</BLINK>