Hey everyone i have recently read about the NoFollow attribute and i came to understanding that while google ignore links with rel=nofollow,
The yahoo search engine is not ignoring them and use them for indexing.
Anyone heared about it? is that the truth or even google is counting this links?

AFAICS, neither Google nor Yahoo follows links that use rel="nofollow":
http://www.google.com/support/webmasters/b...mp;answer=96569
http://help.yahoo.com/l/us/yahoo/search/in...g/slurp-12.html

I went to the yahoo link that you posted here and if i'm not mistaken it's just not counting it as a trused link and it can still use it to get content.

That sounds correct. Taking the link in your signature as an example, Yahoo may find and index the site, if it haven't done so already, but the site's ranking in search results (known as "PageRank" in Google) should not benefit from the pagerank of this forum. See also http://en.wikipedia.org/wiki/Nofollow#Inte..._search_engines