I am doing blog commenting. It is the hardest form of SEO I have ever done as I have to read the content before making relevant comment with either anchor tag or hyperlink of my site in it at appropriate position. Most if the blogs have 0 or no PR as there are not many good PR pages with comment option in my niche. I want to know wether blog commenting will help in google rankings. I am doing article, pr, forum, blog posts etc. along with it too.
Has anyone done blog commenting? any results from it?
Any advice to improve my technique?
Also there will always be many links to original publisher in the content where I am commenting, so will my single back-link in comment count among those highly placed links to original publisher even if I comment relevant comment only on relevant pages?
Also does it have long term SEO value like articles, blog posts etc.?