How to post news stream from a blog in website in a widget

What I want to create is a daily common of short takes from the field I'm covering....Each will probably be about a paragraph..

I imagine I would create a separate blog (?) and then put the titles from the blog into a widget that shows up on the sidebar something like

"the Daily Dose' shown on this website http://www.healthcentral.com/chronic-pain/c/question

Any ideas about how to best go about this?