We have a website that lots of our contents are from other sources and we also have a link to those sources at the bottom of each content, but recently we started to generate content by ourselves, which means we're going to have more exclusive content which is written inside out own company.
There are two questions here:
1- How to let Google clearly knows that those contents are from those sources? (I'm worried about the negative point from Google)
2- How to let Google know this is exclusive content, and different from rest of contents on the website? (any meta-tag or tag?)