Simple plugins to post info about new blog entries?

Question

I am looking for some plugins that would automatically post information about new blog entries (posts) to my facebook/google+ pages.

But - simple search through plugins listing shows that such plugins don't exists, or are rare. Most of the plugins offer content sharing the other way (i.e. display entries from facebook/google+ in your wordpress blog), or simply provide a way to have "Like"/"+1" buttons.

Can anyone of you suggest a simple plugin to send notifications about new blog posts?