Any one Can differentiate between ‘nofollow’ and ‘dofollow’ link?

See my (almost six years old) Article "Who is DEVASTATING the PageRank of Your website?" here at APSense. ;-)

Social media is nofollow. However, I think links from social media has influence on SEO if it has a lot of clicks that brings traffic to your site. Many articles in social media such as Linkedin are indexed in Google.

Thank you Swapnil, Search Engines will see ONLY Do-Follow links are possibly black hat techniques and might punish you. Content is key and looking as natural as possible.

I agree with the answer of Stuart Heathcote building both types of links flow positive SEO.

DO follow means Google will index it, No follow means Google will not index it. Dofollow helps in increasing Search engine ranking while no follow helps to build authority.

Dofollow links is good for SEO, Nofollow links is not good enough.

No follow links don't crawl & index by search engine crawler. But do follow links crawl & index by search engine.

It is actually good for your SEO to use nofollow links and dofollow links mixed.. it looks less spammy to Google bots checking

Do follow link passes link authority whereas no follow do not.

Dofollow links pass SEO Juice and helps in increasing page rank (PR).

Nofollow links do not pass SEO Juice and doesn't helps in increasing page rank(PR).