[Ask] which is more power full between social bookmarking and high dofollow blog?
 

know the current one to raise my blog SERP position by means submit to hundreds of social bookmarking sites, with comments on high pr dofollow blogs that relate to the niche of my blog, but i want asked...., which is more effective, the social bookmarking submit to the comen at high pr blog is a related niche??,

thanks!

I think high PR do-follow blog & forum postings are more powerful than social bookmarking.

My opinion is that it greatly depend on the number of friends/followers you have. Also you must be an active member. These days my site receive greater amount of traffic from stumbleupon, previously it was digg and reddit...