If you want a wordpress plugin that feeds your PUBLIC posts to your blog in a widget – test mine for me and let me know how that works for you
go into ‘Add plugin’ and search for ‘google plus feed widget’ and it should be at the top (made by Liz Quilty). Direct link is http://wordpress.org/extend/plugins/google-plus-feed-widget/
Unzip into your plugins dir. Enable the plugin in wordpress, then go to your widgets menu. Drag it where ever you want it, and make sure you add your Google ID into its config (otherwise it defaults to mine).
Let me know any bugs, addons or similar required .
See it working just over there —>>