I've not gone deep into any of the factors as the article was just based on "SEO for Dummies". There are plenty of other helpful resources that already talk about the above points in detail and a few helpful resources to keep you updated are posted on the right.

But know that, SEO keeps changing and every day is a new day and strategies you used yesterday may be obsolete today. So, keep in mind the future before you proceed. The best thing to do is to put your visitors priorities first and automatically search engines would be pleased.

After all, getting loads of traffic with no conversions is useless.
Veterans please note:

We've all got our very own ideas regarding SEO and there's no single way to do it. So if you've got something to say or if you disagree, feel free to leave a comment. I'm always open to friendly conversations.
Newbies, I'm ready to help:

Have you got questions that I've failed to answer through this article? If that's the case, feel free to leave a comment and I'll get back to you within 12 hours or so on most days with a detailed comment or a link to something that would help you out. In some cases I may even add a new section to the article, if I think it's relevant.