difference and effects of dofollow & nofollow

Search engines do not crawl nofollow links.

Thanks. I guess this should clear out doubts on nofollow and dofollow links.

Yep I think that should cover the major differences between NoFollow and DoFollow.

SticKer

There are some rules you should to follow when you start building links.

[1] Vary anchor text of your website.
[2] Include different Keywords in title.
[3] Link site from different class C - IPs (Important factor for SERP.)
[4] Vary Type of site, like blogs, article resources, directories etc..

Both are necessory for link Building....Some of saying do follow is better. But i am not agree with the statement. I am using both. Why the forgot Yahoo answers and Twitter showing No follow but still SEO expert using widely. Because the importance of no follow link is same as do follow link in Google.

it's good article,thanks for your sharing.

These has been argued many times in many forums. What I saw similar is that these two doesn't have big difference, it is just that in nofollow links they don't pass link juice to the link.

dofollow means you are allowing Google to cache your website and nofollow means the opposite, i.e. Google is not allowed to crawl your website.

No follow doesn’t mean a link is bad , the NoFollow tag will only cause Google, MSN and Yahoo to ignore the link, to pretend it doesn’t exist. Do follow links do help a website get a higher position in search engines results and it also help get more human traffic and sales because having found your website on top positions people will likely click on your link.