These ebuilds come from http://catmur.co.uk/gentoo/.
If you have some problems, go to the official site first.
dbus-sharp : C# implementation of D-Bus ( http://www.ndesk.org/DBusSharp )
evolution-sharp : Mono bindings for Evolution ( http://www.gnome.org/projects/beagle )
libnautilus-burn-sharp : C# bindings for libnautilus-burn (gnome-extra/nautilus-cd-burner) ( http://www.snorp.net/ )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a zugaina
For Paludis use this rsync : rsync://gentoo.zugaina.org/zugaina-portage
If you have a problem : ycarus(-at-)zugaina.org