Experts! 

I need some advice. One of our French professors wants her students to create a collaborative interactive  map of Paris by adding pin points you can click on and then attach their presentations/text/photos to it.  Google Earth seemed like the obvious choice to me, but it only seems to let you attach Youtube videos, text, or photos.  She wants them to be able to attach PowerPoint or Google Slide presentations.  I can't figure out how to do that.