what is the difference between do follow and no follow links? please if any body have knowledge about it please explain it! thanks
do follow links are those which are considered as a proper link and pr is given by google and no follow links are those which are links but are not cosidered as backlinks and no pr are is given on those links
Rel=nofollow means certain pages are kept blocked from crawling search engines and do follow means pages are crawled by search engines
Dofollow links affect your ranking on search engine, nofollow does not because it does not pass seo "credit" to the linked to page I think Steve's link is very helpful, you should check out.
Do follow links is crawled by Search Engines and no follow does not crawle and no follow does not pass Juice.
their are really no dofollow only nofollow means when there's a code saying rel="nofollow" that means it's a nofollow site. If you won't see any rel="nofollow" tag or sourcecode of any site then the site is a dofollow.