Answer:
The answer is: all of the above.
Step-by-step explanation:
Blogs and social media have changed the way we see journalism and news. They represent an alternative source of information for the readers, who can now choose from a variety of sources and contrast information; in the same way blogs provide a check on the traditional media, making it easier for readers to be critical towards mainstream media and the information it provides.
Blogs and social media also have an agenda-setting efect, they dictate what topics should be on the table and have made it posible for readers to interact and not just be recipients of information.