I was considering having for this website I'm working on, the website's logo as the image that gets included in the search results for the articles it publishes. So do to this I want to use Google Authorship with the business's Google+, but is this recommended? I ask because I've never seen an example where it was something other than the author's profile picture.
What you are describing (authorship) is intended for personal G+ accounts... business's should be using pages. You are able to link your business page with your website so that it shows us on the right hand side of the search results, this however, isn't applied to each new article.
In my opinion I wouldn't use G+ personal pages for anything other than a personal page, stick to using it as Google intended, you might find yourself in a sticky situation down the line.
To have your logo show up on the right hand side of the search results you need to get your page verified by Google (http://support.google.com/plus/bin/request.py?hl=en&contact_type=page_verification&rd=1) then link your site to the page using rel=publisher tag