Justin Taylor has just informed me that Monergism has built a Tim Keller resource page. It looks like they haven't located any articles other than the ones I've listed in my Tim Keller Articles post (maybe they used my links to build their page?), but they have added some audio resources which is helpful. Always glad to see Keller's ideas getting out there.
So I've added a link on my Keller post to Monergism, which is a tremendous resource for all thing reformed. Oh, and I've finally added D.J. Chuang's Keller resource page, which I keep forgetting to add. Chuang's site was one of the first places I learned about Keller.