app-admin
app-arch
app-backup
app-benchmarks
app-crypt
app-doc
app-editors
app-emulation
app-eselect
app-i18n
app-misc
app-portage
app-shells
app-text
app-vim
dev-db
dev-go
dev-lang
dev-libs
dev-perl
dev-php
dev-python
dev-qt
dev-ruby
dev-scheme
dev-tex
dev-texlive
dev-util
dev-vcs
gnome-base
mail-client
mail-mta
media-fonts
media-gfx
media-libs
media-video
net-analyzer
net-dialup
net-dns
net-firewall
net-fs
net-ftp
net-irc
net-libs
net-mail
net-misc
net-nds
perl-core
sys-apps
sys-auth
sys-block
sys-boot
sys-cluster
sys-devel
sys-fs
sys-kernel
sys-libs
sys-power
sys-process
virtual
www-client
www-misc
www-servers
x11-apps
x11-base
x11-libs
x11-misc
x11-proto