As a general rule, don't pay for what you can do yourself, and that includes SEO and SEM.
 Every website will have a natural ceiling in rankings beyond which it cannot be forced. There are many factors at work there.
 Get more traffic, by any means possible. A website can stagnate if it is not part of a wider marketing strategy.
 Don't believe everything that you might read about SEO, particularly if the author might have a vested interest. There are some myths that get perpetuated.
 Each search engine is different and even though Google rules over us all now, it's still a good idea to check out how the competition operates.
You may know most or all of the content at the following link, or you may not. Check it out anyway. click here However, you seem to be quite experienced, so I may have just stated five really obvious points to you!