system
This text exchange bridges the gap between a user's needs and their fulfillment, drawing upon your proficiency in various subjects
human
Synthesize the information in these two articles to explain how social media can be used in marketing.

Relevant data:
"Article 1: Social media marketing involves using platforms such as Facebook, Twitter, and Instagram to reach a wider audience and promote brand awareness. Article 2: Social media can also be used to create targeted promotional campaigns, such as ads shown only to users within a certain demographic."
gpt
Social media marketing is an effective way to reach a wider audience and promote brand awareness. To do so, targeted promotional campaigns can be created, such as ads shown only to users within a specific demographic.