I'm working with SharePoint 2007 and we're currently working with another organization for a long-term project. We need to access documents in their SharePoint site.
After trying to figure out the wide array of Microsoft products branded with the name 'SharePoint', I'm not even certain that SharePoint can link to an external SharePoint site outside of the domain.
Is it possible to link two separate SharePoint sites together? If so, how is it done? If not, is it possible to program a SharePoint webpart or some .NET component to transfer documents from site A to B?