2 blogs, same content?

I have a blog that I stopped working on, https://pintmaster.com that has a higher pagerank and gets a lot more traffic than my new blog https://topstartup.com.

What I’d like to do is, everytime I post on topstartup.com, I want pintmaster.com to show a new post. The post would be an exerpt of the article on topstartup and if the user clicks on the title they would go to the article on topstartup.com. Is there a way to do this with plugins?