1) The document discusses leveraging social media to connect with audiences and exchange resources. It highlights how social media allows for persistence, visibility, editability, and association of content. 2) Social media use is associated with higher levels of bridging social capital. However, selective self-presentation is important to consider based on different audiences due to issues of context collapse and privacy. 3) The large, heterogeneous networks on social media allow for asking questions and connecting with disparate others. Sharing information about one's work can help create a brand, drive traffic to other sites, and facilitate information diffusion.