acct-group
acct-user
app-admin
app-alternatives
app-arch
app-backup
app-containers
app-crypt
app-dicts
app-editors
app-emulation
app-i18n
app-misc
app-office
app-pda
app-shells
app-text
app-vim
dev-build
dev-cpp
dev-db
dev-debug
dev-java
dev-lang
dev-libs
dev-python
dev-util
dev-vcs
games-arcade
games-board
games-fps
games-misc
games-roguelike
games-util
gui-libs
gui-wm
kde-misc
media-fonts
media-gfx
media-libs
media-plugins
media-sound
media-video
net-analyzer
net-dns
net-im
net-libs
net-misc
net-p2p
net-print
net-proxy
net-vpn
net-wireless
sci-chemistry
sci-electronics
sec-policy
sys-apps
sys-boot
sys-fs
sys-kernel
sys-libs
sys-power
virtual
www-apps
www-client
www-servers
x11-libs
x11-misc
x11-terms
x11-themes
x11-wm