Mahara page comparing GoogleDocs added via GoogleDocs plugin and those added via an allowed iframe source using v1.6
Google presentations have come on quite a bit since I last looked at them.
I like how they play in a Mahara page and still give you some fuinctionality and features that are not available via a simple slideshare option.
In fact Google Drive seems far more impressive than when I last looked at it. The Publish to Web options in particular.
See on mahara.perins.net