just saw this http://s09.idav.ucdavis.edu/talks/05-JP_id_Tech_5_Challenges.pdf on gamedev, some slides about the virtual texturing in idtech5 (Rage).
Other recent things I stumbled upon were of course the OpenGL 3.2 specs (yeah they finally get some momentum and turned "compatibility" into a profile, not that ugly giant extension). I am currently looking into C hashing libs and a garbagecollector for C. Reason is I want to better split the luxinia GC system from Lua, so that we can move on to using SWIG, ie providing a proper C api (and not just the Lua binding) but keep the reference system working. Smart pointers are not an option as it's too much of an issue to prevent cycles and in general I want to keep the core engine Ansi C.
