We just had an IRC chat organized by Wikinews to talk about how bloggers and Wikinews could work together. If you don't know about Wikinews, it is an effort by the people behind Wikipedia to use many of the same principles behind Wikipedia to run a news site. They've had an early success with their scoop of the unrest in Belize.
Exchange IM addresses between active members in both communities to coordinate stories. (See page of IM addresses for Wikipedians.)
Create an RSS/Atom feed of new stories and hopefully for different tags from Wikinews.
MetaWeblog or Atom API to allow bloggers to post to some section of Wikinews using blogging tools.