If you've ever had the urge to let your visitors see the titles of posts you're working on, or to give yourself a reminder of the posts you started and really need to finish, you might like List Drafts Widget.
Once uploaded and activated, it can be added to a sidebar in the usual way.
This was adapted from my earlier List Draft Posts plugin which is less widgety, and has more options.
Both adapted from code found in the WP Forums.