Using same content on multiple pages (but not all pages)?

I am developing a website that needs to show certain long sections of formatted text on some, but not all, pages.  I understand how to set up a Master page to repeat content and layout across the entire website, but in this case all I need is to use the same content on only a couple of pages.
As it stands now, the content is simply cut an pasted into a couple of pages.  However, if I edit an article one page I have to remember to make the same changes on every page the article shows up.  I would like to have the all the sections of text (press releases, articles, FAQ sections, etc) in one file and call them up to display where I need them through the various pages of the website.

Is there some way to create just the content in one file and call it up using a asp: content command or something similar?  Could someone walk me through it?

Thanks,

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