Do follow link means if a search engine's spider is crawling your website and you are having a link on your website with dofollow attribute. than spider will follow that link and will visit that website also to where that link with land him. Nofollow is just against it. it will not let follow spider that link and spider will normally just ignore it.

Dofollow link belongs to google and no follow link is not related with a google.

Nofollow is a tag that simply tells search engines not to crawl, or notice, a link on a page. No link juice is transfer Nofollow tag. Other hand Dofollow tells serach engine to crawl page. In Dofollow few % of link juice is transfered.

Do follow is a field mentioned in HTML the sites which give do follow are considered good for the websites and the site which mention No follow instead of do follow give no follow link and is not considered good link by the google.

Google is more and more taking into account quality of link sources and less dofollow/nofollow.
Is such

After penguin updated there is value is just increasing with no follow links they are really valuable and there should be small amount for nofollow links that is targetting your links

HI
Dofallow accept by google index but nofallow is not accepted by google index.

dofollow help to get backlink to you website
nofollow not provide backlink easily to your website

For me it really doesn't matter. If a page has lots of traffic and it is nofollow, I would be happy to put a link in it. But if a site is dofollow and no traffic at all, I wont put it.

Dofollow is followed by search engines while nofollow is not followed by search engine, this is the main difference in dofollow and nofollow.

Do follow link gives you backlinks. While no follow links just gives you traffic.

As per my knowledge do follow and no follow both are useful but do follow is more benifical and useful because google consider do follow link very quickly. And there is less chance for no follow to be considerd by google.

Of course, dofollow and nofollow both are helpful for building links to a website.

Dofollow is crawling by search engines and nofollow is not crawle by search engines

Probably the right answer was given all ready. What I want to add: sometimes you can place a link on site even if it is no follow as you are interested in real people to visito your site. A visitor will click a link if it likes where he will go ( not if it is do or no follow )

Do follow is index by google every time when it come to the site and no follow only gives you traffic but not index by google.

Both DoFollow Links and NoFollow Links are good for your Websites.we can say that Do-Follow Links are good for Human Traffic and SEO Traffic.And on the other side, No-Follow Links are only good for Human Traffic which is still the best traffic you can have.

If any links is followed by the search engines's crawlers is called do follow and if anay links is not followed by the crawlers is called no follow link.

If No follow links not consider as backlinks then why sometime we are consider in our website?