Hey Mark,
I tried adding youtube videos before, but I ran into a problem in the google chrome browser. When you open a pop-up box that has a youtube video in it and you close the pop-up box, the video will still stay on your screen. It is a weird problem.
Just a heads up!
Tim
Hi Tim,
You must "stop/pause" whatever media is inside the pop-up before closing the pop-up. I usually include this note as an instruction for users under the "Description & Contents" part of the metadata page for the web map or web mapping application.
Thanks!
Hi Everyone,
As far as I can tell, embedding video directly into the pop ups in ArcGIS Online is still not possible. I tried the suggested work around (in Chrome and Firefox), but nothing is showing up. As a work-around, I've created a KML, embedding the iframe in CData tags as part of the Placemarker's Description. The KML can then be uploaded to your ArcGIS Online My Content (using Add Item) and then you can reference the KML layer in your map. You may need to adjust width/height of the iframe.
Hopefully this is functionality that will be incorporated soon; if anyone knows otherwise, though, please let me know.