After a customer has filled in his review, there is an option to blog the review, which is a simple process that takes about 30 seconds to port the review right to the blog.
I decided to do the bulk of my Christmas shopping for the family through Olympic Store last year. So I'm going to use an example of one of my own reviews to show you how this works:
After you complete your review you see this screen:
You enter your blog URL and then you're prompted for your user name and password:
You receive confirmation your review is posted instantly:
And the review is published on my blog along with the product description used on the Olympic Store website:
The links to the product in the review are direct links, which means you get an SEO benefit too.
This can even improve the quality of review content. Customers who choose to post reviews on their blogs and have more items to review will likely put as much care and thought into the review as one of his or her own blog posts.
This feature comes out-of-the-box with Power Reviews. I'm not sure if other providers also offer this feature.