I know if google penguin effects your site then you will not be ranked well in google. But does that effect pr as well ?
I want to follow users based on some niche. So, how do I get search niche based users in twitter ?
Does extension of the domain actually matter in SEO ? if yes, what are the pros and cons of various domain extensions ?
Which is good software for getting huge number of backlinks ? BacklinkTOPIA or Backlinks Indexer ?