Media Types

People have always loved how easy TimelineJS makes it to add rich media to the slides that tell your story. The new version of Timeline continues the tradition and adds a few new media types.

Image
If your URL ends in jpg, gif, png or jpeg, it will be used as the source for an image tag. It should also work if there is a query string after the extension, perhaps specifying dynamic width and height values.
Online Videos
Use the URL for the page of the video for Vimeo, DailyMotion, Vine, and YouTube. Timeline honors Youtube start-at time parameters.
Video Files
Use a link to a video file on the internet. Timeline currently supports .mp4 files.
Audio Files
Use a link to a video file on the internet. Timeline currently supports .mp3, .m4a, and .wav files.
SoundCloud
Use the URL for the SoundCloud clip page.
Spotify
Supports use of tracks, albums, and user playlists. Use the URL obtained from clicking on "Copy Spotify URL."
Twitter
Use the Twitter embed code, or the URL of the tweet's page.
Google Maps
Use the URL for the Google Maps page (unless you are using Streetview, which currently requires the embed URL found in the "Share" section). Coordinates, search results, place marks and directions are all honored by Timeline. TimelineJS supports roadmap, hybrid, satellite and terrain Google Maps, as well as directions, places, and Streetview maps.
Instagram
Use the URL for the Instagram photo's page.
Flickr
Use the URL for the Flickr photo's page. The shortened link provided in the share menu (e.g. https://flic.kr/p/sv3VN6) will also work.
Imgur
Use the URL for the Imgur photo's page. These URLs often (but not always) include the string /gallery/. You should not use a "direct" Imgur URL (typically including i.imgur.com and ending in an extension like .jpg or .gif). This is considered "hotlinking" and is specifically against Imgur's terms of service. That kind of Imgur URL may appear to work for a short period, but will not work for long.
DocumentCloud
Use the URL of the Document Cloud document's page.
Wikipedia
Use the URL of the Wikipedia article's page.
iframe
Instead of a URL, you can use <iframe> markup. This is a good general workaround to embedding media types that TimelineJS doesn't handle directly.
Blockquote
Instead of a URL, you can use <blockquote> tags around whatever text you want to quote.
Wistia
Use the URL of the Wistia video. You can find this in either the "Social Sharing" or "Embed Code" tab of your video.