Star rating widget for blogger by outbrain is an excellent widget to get instant ratings and recommendations.
It also help to drive traffic by  Recommended Posts & Related posts widgets which are embedded within Rating widget

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Star rating widget with related posts in text

Star rating widget with related posts in thumbnails

How to Install This Widget to your Blogger Blog?

1. Go to Outbrain’s site by Click here
2. Select “Get Widgets”
3. Choose Recommendation type Text / Thumbnail
4. Choose feedback type
5. Select Blogger Platform
6. Check box agree to the Outbrain Terms of Service 
7. Then Select Install to install widget in your blog
8. You can get access to advanced settings of Your widget By Free Sign-up in Outbrain site