GIS Web Mapping?

muengineer asks: "We're looking for a solution that will allow us to put a zoomable, panning campus map online, with clickable hyperlinks, but not fall into the trap of raster images with image maps. Preferably, I'd like to use something vector based, that can import our GIS data. Although there are solutions out there from companies like Autodesk and Intergraph, unfortunately they appear to be intimately tied to Windows NT as the server. Is there anything out there that will let me use Linux?"