Thanks @mfhepp for the nudge.
The only non-PDF slides were from @benadida.
https://twitter.com/danbri/status/607949333904949248 ... I'm copying them all into repo.
Materials from Sept 2011 kickoff Workshop.
Added rNews slides and bare bones wrapper page.
Noted #527 fix - workshop materials
Re-opening to note that http://blog.schema.org/2011/09/schemaorg-workshop-wrap-up.html should be updated accordingly (the page also needs boilerplate, and we ought to thank MS for hosting)