<noscript> tags and SEO

Is putting keywords between the <noscript> tags any good for SEO?

I have seen a few posts on the net stating that they are a good way to hide keywords but i dont wanna get banned off adsense if i decide to use them.

whats your take on these tags?

Absolutely use them, but use them carefully. Anybody telling you that it's a good place to stuff keywords is still living in 1998.

By using <noscript> you are providing a way for search engine spiders to see content that they would not normally see, such as JavaScript and Flash. However, G-bot has the ability to parse some JavaScript... but it doesn't hurt to help it along with some <noscript> love. Also, other less capable spiders can benefit from content placed within them.

What can they be used for other than hiding keywords?

Could adsense be hidden this way or is that too risky?
Posted via Mobile Device

Well, <noscript> can be used for its intended purpose - to give content to spider that cannot process browser side scripting like JavaScript or Flash. In other words, a site with a nice Flash animation is penalizing itself if <noscript> is not being used since most spiders cannot read the contents of the animation. G-bot can also read some Flash, but there are still issues.

Since AdSense is JavaScript based and using <noscript> is a directive to spiders and browsers that do not use JavaScript, I don't think you'll have much luck hiding it that way.