on his blog, Anna Meyer (Atlas of the Flanaess Project) has recently released a composite map of all her Flanaess sections to date. It's a big download but trust me its worth the wait for fans of her work and the setting. Follow either link for more details.
While I'm on the subject, another Greyhawk mapping community favorite, Eric Anondson has returned and has been busily working on his stunning views of the Sheldomar Valley (SW Flanaess). You can find different variations of Mr. Anondson's newest maps and also his older classic works of Greyhawk cartography on his gallery.
But that's not all! The Greyhawk map rennaisance continues over at the Cartographer's Guild where a member named Lukc posted a commissioned map of Radigast City. I have to say, I don't know much about Radigast City in canon, but it doesn't matter. This map is stunning. Check it out. Kudos to Lukc and the Guild.