Optimizing your website for Google is really important. Once you build you site, if you tell google about it, they will come, check it out, record the information and pages that are “indexable” and the robot will then scurry off to another website to continue it’s never ending search for information and how to relate it to people’s search inquiries.
Once you’ve done steps 2-4 you should see within a 24 hour period that the GoogleBot came to your site. That’s a great start, but that’s just it, that’s just the start. Once you’ve been indexed, the GoogleBot will come back to your site to see how often the content changes and it will evaluate the content to see how “related” it is for specific key words. This is where writing good content is important and where constantly adding new content to your website becomes important.