SEO noob here and I would appreciate any input. I asked a few weeks ago how to do some basic keyword analysis - to see which keywords are searched the most, and to see the competition level of keywords. Many people pointed me towards the Google Adwords Keyword tool, told me to click "Exact" on the left, and type in the terms. It would show me the global monthly searches and the level of competition. It made sense. Now in another thread I made, someone told me that tool shouldn't be used for general keyword analysis - that it should be used for Adwords analysis. Can someone please tell me if this is true and possibly explain the difference? What can I use for general keyword analysis?