It would seem that Will McGugan has found a way to keep it alive!
See his blog post here: http://www.willmcgugan.com/blog/tech/2013/8/7/resurecting-the-blink-tag/
P.S. His blog is well worth the read as he has other crazy thoughts that might spark an idea in you as well.
In case that site goes away - here is the bits you need:
Just need HTML5 and CSS! All hail Will! P.S. - You need to give attribution to him if you use it -
His quote when the site was transcribed here: "Be sure to give attribution for the above code, so your users will know where to go to thank me…"
<!DOCTYPE HTML>
<html>
<head>
<style type="text/css">
blink
{
animation:blink 1s;
animation-iteration-count: infinite;
-webkit-animation:blink 1s;
-webkit-animation-iteration-count: infinite;
}
@keyframes blink
{
0%{opacity:0.0;}
50%{opacity:0.0;}
50.01%{opacity:1.0;}
100%{opacity:1.0;}
}
@-webkit-keyframes blink
{
0%{opacity:0.0;}
50%{opacity:0.0;}
50.01%{opacity:1.0;}
100%{opacity:1.0;}
}
</style>
</head>
<body>
The <blink>Blink Tag</blink>, re-implemented!
</body>
</html>