Are you lost in the woods of Googles many products you can use to optimize your website for both Google itself and your visitors?

These are the questions they answer for you:

Google Analytics
How are people using my site?

Google Webmaster Tools
How do people find me in Google and why?

Google Keyword Tool
How can I reach more people by choosing the right keywords?

Google Trends
How do these keywords perform over time and in different regions?

Google AdWords
How can I compensate my low ranking on certain keywords by paying Google for it?