Lost Symbol information on Twitter: @lostsymbol
Sony Pictures have begun promotion of the movie adaptation DB's Angels and Demons, with the official website as well as a multi-stage "Path of Illumination" contest. The movie website also features an early trailer, though it doesn't show very much - more for setting the atmosphere than anything.
I'm afraid I won't be playing the contest, as (a) it's not open to those in Australia, and (b) it requires you to have a Windows Live account. Sometimes I'll jump through a few hoops, but I really don't feel like signing up to Microsoft in a blatant marketing move (requiring a Windows Live account, and a download of the new Photosynth program).
But feel free to share tips/hints in the comments thread to this story if you do enter. One thing perhaps worth noting - in the trailer, the words 'Altars of Science' is 'hidden' within the "Illuminati" ambigram.