zag, those sites are safe connexions, e.g. no blacklisted tracking cookies nor trojans currently associated with any of them, hence I reckon it's safe to connect.  poser does that to accommodate users who wish to search for content online.  producturlsupport is a site for smith micro's softwares in re: updates et al..  bill mentioned that the poser library will load, even if the machine is not connected to the internet, should one be desirous of that.

personally I was rather pleased to see 'rosity's name added to the list, after all these years of faithful service as a poser content provider and a place where new users can learn about poser.