People will link back to a good blog post, and comment on that post.
It's far better to write a good blog post, then spend time commenting on other blogs.
I just want to chime in and say this. Think of it this way one good article can gain hundreds of links if it is of real value. In fact it can continue to gain links as times goes by basically putting your link building on overdrive. Now if you have 10 great articles or blog posts imagine the potential.
Learn how to do Extreme Couponing
I doubt you tried blog commenting and blogposting since that is probably last on your mind. And thus your comment is not giving any worth value to our community.
And you just spent 5 minutes of time of some very great people on this thread.
This time I will ask you politely to stop what you are doing before admins pull their powers.