Web Free SEO Tools

I believe that google searches the website for certain keywords and then decides which ads to place beside a site by comparing keywords in their database to the website that the user is viewing. How do they go about doing picking which ads to use?

Thank you!

Can you do the same functions, charts, graphs, etc on the spreadsheet tool?
Is it worth it ?
Do I want to sign up for this through Google, when they are notorious for mining personal data against people?
Thanks to anyone who can provide info.

I have an iPod touch and just got the upgrade so it has google maps. There is a locator function that can pinpoint where I am and shows it on the map. Since the Touch uses wireless not cell phone signal, how is it locating me?

Up until recently, the images used by Google earth and maps were between 12 and 18 months old. However recently I’ve noticed that the maps have aged significantly. For example, my house that was built in 2000 now shows an empty field although the road overlay showing the street is still there.

The Chinese government has a history of abusing their people and their neighboring countries. Now they are attempting to abuse an innocent reputable company which serves billions of people in the world. Can the UN revoke China of its permanent security member status for abusing Google ?

I have to complete the Google Adwords certification in a few weeks time and the problem is I have no time. Does anyone out there have any tips on where I can find a good tutorial to study for the test?
Thank you!

I copied and pasted a document off Word and put it on Google Docs to edit. Now that it’s complete, I need to print it. When I copy and paste the document on Google Docs and put it on Word, the formatting is all messed up. Is there an easier way to do this?

How do I get google calender to email me about events on my calender on a non google email addresses? I just use Google for Google calender, but I want it to email me about the events on my calender on my yahoo mail account. Is their a possible way to do that,
I want to use it on my yahoo mail account.

Whenever I perform a search on Google or Bing and try to go to one of the links the search returns, instead of going to the selected site it redirects to another random, obscure search engine. It does not seem to happen with Yahoo. Is this a virus? How can deal with it?

I signed up for google adsense and most of the ads have to go for websites/blogs that I own. Is there a way to post them and earn money from posting on other sites, or any other ways?