extract list of user id's from views to tag a content automatic I want to extract a list of users id's from views to automatic tag the user generated content. 

The function is important because a company should be able to make a list of users receiving their ads. These ads are a defined content type they are able to make and it would be great if these user id's could be tagged automatically. This is the only way (as I see it) I am able to control which users are exposed to these ads, because in most instances its only part of a group that should be exposed to it. 

Can anyone help me with making this functionality, either in code or through modules I do not know about.
Perhaps you could use Views Bulk Operations to list the advert nodes and assign the relevant field information though 'Modify entity values' action

It will allow you to filter and select the adverts to update then batch update them.