Banshee, by AaronBockover (abock) and GabrielBurt (gabaug).
Black Voodoo - Introduction into the autotools, by SvenHerzberg (herzi) and BehdadEsfahbod (behdad).
Breaking the Silence: Making Applications Talk with Telepathy, by RobertMcQueen.
C++ and GNOME, by HubertFiguiere
Clutter Foo, by MatthewAllum (more material)
Document-centric GNOME, by FedericoMenaQuintero
Enhancing the writing support in GTK+, by SimosXenitellis (simos).
Exempi, by HubertFiguiere
Eye Candy for Portable Linux Devices video (11MB), by DavidSchlesinger (lefty).
Farsight2: Videoconferencing for the free desktop, by OlivierCrête (Tester)
GTK+ State of the Union, by KristianRietveld.
GNOME and Bluetooth: part deux, by BastienNocera.
IM-up your app!, by SenkoRašić.
Introduction to the Desktop Data Model, by OwenTaylor.
Libopenraw, by HubertFiguiere
Location-aware applications with Geoclue and Gypsy, by Henri Bergius, Iain Holmes and Jussi Kukkonen
Marketing Gtk+, by Alberto Ruiz.
Mozilla - Leading the web, by ChristopherBlizzard.
Niepce Digital - advanced Digital Photography software, by HubertFiguiere
People, a contact management framework for the free desktops, by AliSabil (asabil) and JohannPrieur (jprieur)
Soylent -- Toward a people-centric desktop (ODP | PDF), by TravisReitter.
Speak With Your Desktop, by RaphaelNunes and NickolayShmyrev.
Synchronisation and GNOME, by JohnStowers (john.stowers).
Transifex: Upstream-friendly cross-community translations, by DimitrisGlezos
Wizbit, a distributed revisioning file system, by RobTaylor.
Vagalume, Last.fm client for Gnome and Maemo, by AlbertoGarcia.
What happened to Extended Layout Management?, by MathiasHasselmann
Easy Publish and Consume Library, by MathiasHasselmann