I want to know that no-follow link have any importance?

No-follow links are valuable in a way that if you link to relevant sites, then you get direct and targeted traffic from those links. But, it's equally important to remember that the value of a web page depends on many more things other than links.
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Smith Jones

no follow links gives you backlinks and even traffic. so it has importance like do follow links.

I never believed in the NF links. A lot of experts have discounted the NF links. I just backlink (most of the time) to get referral traffic.

Yes, absolutely no-follow link has lots of importance for your website. No-follow is one of the most discussed and controversial HTML attribute of the web. It prevents search engines robots to follow eventual incoming links your website have, prevent the crawl of your website and of course that these external links lose all their value in term of link popularity and “Page Rank”.

Nofollow links becomes very helpful for generating traffic to your website and most important it does not hurt search engine. It does not influence the search engine ranking. Sometimes making the use of only dofollow links becomes suspicious, so to avoid this it becomes necessary to use nofollow links. Therefore, nofollow links also becomes helpful like dofollow link.

It still drives good traffic to your website but doesn't help in ranking. Its not a great fault to have a link from no follow website.

hi. No follow drives you more traffic and secondly also decreases spam. But Google prefers only dofollw links whereas Yahoo uses no follow links.

Mo-follow links also have their importance. But if you want to a higher PR do-follow links would benefit you best.

I use no-follow links only for traffic, nothing else.