As stated above ... I just want to know that no-follow .edu links has any value ?? Actually i wanted to create back links for my site through blog commenting. So just asking this question by curiosity
Dofollow is better ofcourse, but nofollow have their own value from search engine point of view. I remember there is one post posted by matt cutt in his blog talking about this. You may want to search in his blog Simon
A link with nofollow has no “juice†from SEO perspective. It would not help you. Search engines give them no importance.
all links have some value. aside from google, there are other search engines thast still count nofollow links
no-follow links will not be counted as back links, will not get any link juice. So do not have any benefit except the referral traffic