app-portage/eix
app-portage/layman
app-portage/gentoolkit
app-portage/portage-utils

# Installers
app-admin/webapp-config

# Perl, python, ...
app-portage/g-cpan
#app-portage/g-sorcery						# g-sorcery seems abandoned by gentoo
app-admin/perl-cleaner

# CD-builders
dev-util/catalyst

# Cross-compilation support
sys-devel/crossdev

# Logs
app-portage/genlop