We get daily requests for the same asking us to create a link back to their websites. What experience do you have?
Re-posting someone else's blog post, word for word, will likely not help you at all. Getting requests to link out to these other sites also doesn't help you--at least not near as much as it helps the sites you're linking to.
They need for improve their SEO and raise link weight on the website. Call me if you want to know more about how it works