Trying to set up regional content

Hi,
I'm still new to Sitefinity and could use some suggestions and help for what I'm trying to do:

Let's assume I have three products A,B and C. A and B are available in the US, B and C in Europe, and A and C in South America. Blogs, news and other content will be related to these products. How can I make sure that only the content for the correct products show in the correct region? This will be on a public site where the user can select their location.

It looks like taxonomy might offer a solution but I'm not sure how to set it up exactly, so any help will be appreciated.

Hi,

 You can create different categories for the different locations you have and assign them to the content items for the relevant locations. Then you can place a categories widget on the page where your content widgets are, and if you have a category, assigned to at least one of the content items on the page, then the relevant category will appear on the Categories widget. When you click on it, it will filter all content on the page and display only those content items that are assigned to that category. 
More information on configuring the Categories widget can be found here:
http://www.sitefinity.com/documentation/documentationarticles/user-guide/widgets/classifications-widgets-group/configuring-the-categories-widget