This SnapShots in Akiba site
has some anime, game, or seiyuu related snapshots
taken while walking around in the Akihabara area.
Comments to snapshots@usagi.org.
At the end of December and the beginning of January,
there were advertisement panels for the seiyuu group Sphere
on the escalators going to the Yamanote Line platforms.
There were two different panels.
Sphere was going to have a concert at the Nihon Budoukan on 2/1 and 2/2.