Both are important if you do Do follow blog commenting then you get a good backlink while Blog writing related to niche with link at respective web page service can earn PR and qulaity backlink for your website.

U wasted your time because in SEO, u must search before u perform any action. Blog commenting is a waste of time because u get no backlinks because about 95% of blogs has placed 'no follow' tag in their links which means google will not count their link is a backlink. Thats it

From my view point blog commenting is the best and also best for driving traffic for the website. At present I am also doing blog commenting as my daily work and also I have gain much success. I am very much satisfies by doing blog commenting.

Why has EVERYTHING to do with search engines????

Because search engines provide ultimate benefit..Higher search engine ranking, higher will be traffic, more customers and ultimately more profit..YOU UNDERSTAND

It's all up to you! The polite way is to answer back tho.... On their page!

Blog commenting is the process of exchanging your links to them so that it will drive traffic to your site and making it visible too to other bloggers out there.

o.O i write a blog and dont care or even think about visitor...i dont want got bother about it.

Originally Posted by Social-Media

Considering 99.99% of the blogs on the web are NOFOLLOW, commenting on them is not going to help your rankings. If you are commenting on blogs, you need to be REALLY participating in the conversation and sharing useful info. If anything, it is a technique you should be using to drive traffic if anything. Don't look to it as an SEO technique.

Whether you're writing content or commenting on it, you should consider your "reputation" as ChrisHirst suggested. Without it, you're just another spammer out there "polluting the web" as blue-dreamer said.

Agreed. Try not to do SEO work just for SEO, you need to paticipate and share, after all, visitors is what you need.