Synching 2 website's product lists with options

[Guest]

Hi,

 

We have a main oscommerce website that has 3 or 4 customers that need to replicate their website product data when changes are made on the main site. They want the ability to choose what products get updated since they may not want all the updates that are available. Does anyone know of a way or program that would help synch these oscommerce sites?

 

Brian