DynamicWP has put together a list of 11 plugins that are especially helpful for writers using WordPress. One of the nifty plugins from that list that I discovered is AP Style Dates And Times. This plugin automatically abbreviates times and months according to the AP Style guide.
The second resource that you should keep handy if you’re the journalist type is a post written by Ryan Imel on WPCandy.com that lists a number of different services and plugins that Ryan has used to keep WPCandy readers up to date on everything happening within the world of WordPress.