As it stands now, there are two separate (yet legally related) non-profit organizations with two separate websites (each with their own domain name and host). One website is http://www.fbpcs.org and the other is http://www.fabbs.org.
However, both organizations are looking to redesign their websites and pool their resources.
What they want is to have one single website with pages of content for FABBS and pages of content for FBPCS. The one website would have a unified design, one content management system, etc.
The trouble is that each organization wants pages with their content to have their organization’s URL in the address bar. For example, if you are on the FABBS donation page on the site, the URL should be something like http://www.fabbs.org/donate.html but if on that page you clicked a link that took you to the FBPCS membership page, the URL would need to change to http://www.fbpcs.org/membership.html.
Is this even possible? We do NOT want one domain to simply redirect to the other, instead they need to switch back and forth based on content. We also can NOT use a third unified domain name (like www.fbpcsfabbs.org or something) or any type of subdomain.
Any advice you could provide would be great. Also, if you know of something like this in action elsewhere on the web, please post some links.
Thanks.