These are different examples of the types of outreach projects that fulfill the PhD Outreach requirement.
Online learning Interactive Explanations
Example: https://www.cfa.harvard.edu/~yuan-sen.ting/lyman_alpha.html
(from Harvard PhD student Yuan-Sen Ting)
+More interactives from Harvard grad students at: http://ay201b.wordpress.com/topical-modules/2013-topical-modules/
Interactive Tours in WorldWide Telescope
Example: https://wwtambassadors.org/wwt/tours/w5-star-forming-region
(from Harvard PhD Xavier Koenig)
Full Website on a Topic
Example: http://hubblesite.org/explore_astronomy/black_holes/
(RSA) Animation
Example (lives & deaths of stars): https://www.youtube.com/watch?v=TeIgVe1LcRk
AAAS/Science dance your PhD competition http://news.sciencemag.org/people-events/2014/05/announcing-…-2014-dance-your-ph.d.-contest
Example: http://vimeo.com/77304026
TED Talk
Example: http://www.ted.com/talks/michelle_borkin_can_astronomers_help_doctors
(from Harvard PhD Michelle Borkin)
CrashCourse style educational video
Example: https://www.youtube.com/watch?v=tq6be-CZJ3w&list=UUX6b17PVsYBQ0ip5gyeme-Q