On the DIA Support listserv, a question about integrating YouTube with DemocracyInAction pages yielded this nifty Oceana action page with a YouTube embed.
Nice pairing. Cameron explains the trick to making sure YouTube plays nicely with DIA:
When embedding YouTube in DIA, the thing to look out for is the WYSIWYG ["What You See Is What You Get" -- the word processor-like HTML editor used in e-mail blasts and on some user-facing pages. -ed.] editor. It has a tendency to mangle code, so I would suggest disabling it when adding the HTML provided by YouTube.