Hey, it sounds like you could use Section Markers. If you name your pages (assuming each article starts on a new page) you can have the section names be filled in automatically. Take at the document numbering options for more information on this: http://help.adobe.com/en_US/indesign/cs/using/WSa285fff53dea4f8617383751001ea8cb3f-7111a.h tml
Your jump box could look like this: "[SectionMarker] continued on [NextPageNumber]"
Let me know if you still need help.
Next and previous page markers only work with threaded text frames, so the markers would need to either be in threaded frames themselves, or in frames that touch a set of threaded text frames.
My pages are not unique, rather, one page can have multiple articles. What I would like to do is lay all my articles out in InDesign, dress them with images and captions, group them together, and then (if I can) define variables like JumpText so that they're automatically filled in whenever I thread one to the other.
Is this possible?
If yo are placing text and images, not pages, from another document, this is exactly what the Next Page Marker and Previous Page Marker are intended for. Read about them in the help files. If you are placing pages, the markers can still work, but you'll have to thread the frames that you put them in instead of using stand-alone frames that touch your threaded text. You don't need a variable.