Commenting at other blogs has been known to yield instant massive traffic for many sites. Take careful note of the fact that I am NOT talking about spaming blogs with your selfishly irrelevant comments.
Here are seven courteous, ethical and legal ways to leave comments at other blogs and in the process create sudden massive traffic to your own blog as well as creating valuable links that will improve your ranking with major search engines.
a) Comment without a single link at blogger.com sites
You can comfortably make comments at blogger.com blogs (the vast majority of blogs out there are blogger.com blogs anyway) and interested persons will still be able to find you and your blog. All you have to do is to update your blogger.com profile so that when people click on your name, they will arrive on your profile page and be able to see what you want them to see. You don't even need to have a blogger.com blog. You can stay at Wordpress or wherever else it is that your blog is hosted and then simply register at blogger.com to make comments only. There is a saying to the effect that to catch fish, you must conceal the hook. This is powerfully illustrated by the fact that in many cases you will find that people are much more likely to look for you when there is no link available rather than when you have a link prominently displayed next to your comment (hook clearly displayed so most people avoid it as fast as a fish that sees a harmful hook sticking in front of it)