Media Management in Drupal
Drupal 8 offers much richer media management capabilities than previous versions of Drupal.
Additional Media Type Support
Although Drupal has long supported images and generic files, Drupal 8 expands on this with a generic "media" field, with support for local audio, video, images, and generic files, as well.
Embedding Remote Content
Media Library (Experimental)
The media library module also lets you select from existing media to place into your post, as well as upload new items directly to the library.