A great place to start is downloading the free program WebCEO
. The good thing is that it will optimize your site for you, do the submissions, and all the other things you need to do to get indexed and ranked high. I used it before we switched to IBP but honestly, they seem like the same thing and WebCEO is free.
Here's some copy from their site:
SEO Software "Web CEO":
12 SEO Tools
in One Powerful SEO Suite
Web CEO is the most complete SEO software package on the planet; plus, our SEO software offers more for free than any other software package or suite for SEO. http://www.webceo.com/images/version_released.jpg
Web CEO 7.5 is released!
It didn’t take us long to enhance the celebrated SEO/SEM software and introduce its new version to you. If there’s one expression to describe the distinctive feature of version 7.5, it is “complete automation”. See for yourself – the Dashboard gives you summary results of all your site activities, so a quick glance is enough to tell if your site is performing well; you build and keep your link partnerships effortlessly; the program generates and submits sitemaps; it provides multitasking support in Scheduler, and many more valuable features.