We currently support embedding from the following sources:
Adobe Experience Design, Adobe Voice, Bandcamp, Dailymotion, Dartfish, Flixel, Flowvella, Gfycat, Giphy, Google Maps, Interlude, InVision, Issuu, Marvel, Marmoset Viewer, Mixcloud, Prezi, Scribd, Shapeways, Sketchfab, SlideShare, SoundCloud, Spotify, Tableau, Verold, Vimeo, Vizor, Wufoo, Youtube.
For Adobe Spark, visit this post.
If you have an embed from a provider that we don't support, you can always upload a Screenshot of the content (or any other image) and then add a link to the image that navigates out to another website.
Note that the "embed code" is different from the Web Address. On whichever site you used to post your content, there should be a button that says embed. In the case of YouTube, this located in the bottom right corner below the viewer. If you click this, a long code will come up. This is what you should paste into the Behance Project Editor.
Twitter doesn't natively generate iFrames but Behance/Portfolio projects utilize a tool called Twitframe that allows members to embed any Tweet into a Project. The Tweet will show updated stats as well as link out to the original Twitter url.
To make a Tweet Embed, use this sample iFrame
<iframe border=0 frameborder=0 height=250 width=550
but replace the Twitter Link with the Tweet you'd like to embed. Depending on the Tweet, you may want to adjust the size of the embed. Please note that this is also the way you'd need to share a Vine video, just use the Tweet link for that Vine.
If you'd like to Embed from a site that we don't currently support, we are happy to consider adding it as an accepted site. We add these based on demand, so if you get in touch with support with your request, we'll consider it.