Browse overlay stuff
app-doc
mail-client
sys-apps
app-editors
media-gfx
sys-fs
app-misc
media-libs
sys-kernel
app-office
media-plugins
www-apps
app-portage
media-sound
www-misc
app-text
media-tv
www-plugins
dev-embedded
media-video
x11-apps
dev-libs
net-im
x11-libs
dev-ml
net-libs
x11-misc
dev-util
net-misc
x11-plugins
games-misc
net-p2p
x11-terms
games-roguelike
sci-mathematics
x11-wm
lxde-base
sci-physics