1. SEO will not make you the best. But it will show that you know your job.

2. When you don't know what's wrong with your website, most likely google found out something about it.

3. To make a little money in Adsense - you have to work hard on the site. To make a lot of money in Adsense - you have to work with your brain.

4. If you find the information on your site useful, you're on the right way.