Social Bookmarking and Blog Commenting both are important in getting traffic and in getting backlinks to your site. so prefer both.

Both techniques are Important ..but i think Blog Commenting is Better then Social Bookmarking because it Provides Quality Traffic and High Pr Backlinks!!

both are helpful

Just remember to make sure the comments are high quality and contribute to the conversation

Both of them

Blog commenting and Social bookmarking both are best for the website. Ranking and traffic both are come on website easily with the optimization.

i think for backlinks we can use blog commenting. but for increasing traffic social bookmarking is needed. so both of them are important.

publish your blog posts to social networks and you will get comments to it.

both activity come in seo off page and helpful in ranking.

both of them are great for seo, and good rank on search engines

Blog Commenting is best then social bookmarking.Blog Commenting is off page activity in SEO which is useful for creating back links,generating traffic and increase web page rank,

in my opinion blog commenting is best.Blog Commenting is off page activity in SEO which is useful for creating back links,generating traffic and increase web page rank,

Both are good but I'll suggest blog commenting ..............

I think both are important and both provides a back link what is important for any website to rank well all over the search engines.