I beg to disagree...
First about: "By submitting one's website to the search engines you become more visible in the search engines."
hmm isn't it is best to submit to directories rather than to search engines? because search engines is the one which crawls your site while with your directories it gives you one way link that will help boost your site while with search engines even though you do not submit your site to them they still crawl your site...
Second: "Bulk Email Posting"
This one of the unhealthy
seo, this is considered as SPAMMING...
seo is a long term basis of work... it needs determination, patience, and always be updated to what new in
seo...