$URL talks about lot of kernels which are no longer available through Portage like gentoo-dev-sources, development-sources etc.
The developer list is also very out of date, we've added a few since then :-)
I have updated the page, brirfly.
could those please check and if you have any changes you wish to make let me know.
Someone removed hppa-dev-sources for me, thank you :)
"Gentoo Kernel Mailing List - Subscription information: Closed for now"
Why is our mailing list closed for subscription?