[Zope] Squishdot Question (not Problem)

This is a squishdot question that may have an answer involving general technique (so that is why I'm using this forum). I am running three separate Squishdot sites (great program, really caught on in my law firm). The sites are for Intellectual Property, E-Commerce, and CyberLaw. Each site is separate because it caters to a different group of people, although there are some people viewing more than one site. While much of the content is dissimilar, there is some overlap. The question that I have is can you have one posting to a Squishdot site be posted to multiple sites? Thanks in advance, Ron