There are post to Facebook/Twitter plugins but I can't find one for Google Plus. Does anybody know if such a plugin exists or if there is a better solution? It would be nice to have content automatically post to a Google Plus page!
Here is a plugin to display your Google+ feed in a widget: http://wordpress.org/extend/plugins/google-wordpress-widgets/
However, the reverse, of posting from WordPress to a Google+ profile/page is not possible, as the necessary API calls aren't available in Google+. One can read from a profile/page but not write.