In default WordPress media library you can only upload your desired image or video. What if you have huge video collection in YouTube or in Vimeo or have album in Flicker and you want add this in media library. Yes you can easily add remote media library in WordPress by using Remote Media Libraries plugin. It gives you direct access to all medias like youtube, vimeo, dailymotion, flickr remote library directly from the Media Manager. The developer of the plugin is trying to add more and more online libraries like Instagram, Tumblr, Photobucket etc.
After installing the plugin you can see a new menu Remote Libraries under Media menu. Try to add a new library by clicking in Add New button:
Then enter your user id of select remote libraries while your are trying to add a new library:
After successfully validating the library you can add library item easily while you are publishing or updating a new post or page: