<blink> ... </blink>tells the browser to render the text components of the contents as blinking or flashing.
This is not a standard HTML tag and is deprecated by most authors. If you want a blinking image, you'll need to create it as a looping animated GIF. A table enclosed within <blink> .. </blink> tags will not blink.
There is no way of controlling the blink rate. Continuously blinking text is very irritating.
Here's an example.
Only NN honours this tag. Users of other browsers can cause severe irritation to Netscape users by enclosing the whole page in <blink> .. </blink> tags.