When is the time your site’s keyword in on the first page and the space after you saw your keyword rankings go down?
Directory submission, Social Bookmarking, and Blog Commenting. Is this all you do to get your site in the first page?
There are lots of questions in your thread and one thing it is not clear, and I think you just want to post with no substance.
If you read some of the other threads in this forum, you’ll find that practices such as directory submission, social bookmarking and blog commenting are becoming all but worthless in terms of influencing your SERPs. Search engines - and particularly Google - are becoming ever more adept at recognising attempts to manipulate ranking with poor quality link building.
If you really want your site to rank, then don’t waste your time on these things, but devote it instead to improving the quality of your content. It’s the only reliable, long-term technique.