There is only one dynamically updating page, and that is the main blog page (and the other post pages such as categories, archives and tags). Pages that you create are not dynamic, they are static and used for information that seldom changes such as an "about" page. http://support.wordpress.com/post-vs-page/
My suggestion is to create categories for the different areas and then assign the appropriate categories to those posts. Then people can click on the links in the categories widget to get just a listing of posts in that particular category.
If you wish you to further control your viewer's experience, then you can create a static front page and create links to the different categories in the body of that page. Your viewers would then click on the title of the category they wanted to view and be taken to the list of posts in that category. Do be aware that having a static front page will adversely effect your page ranking with search engines. Search engines pay far more attention to the main page of your site and when they see it is not changing, your page rank will suffer. http://support.wordpress.com/pages/front-page/