Karl Barth's great-granddaughter has created a new Barth website as part of a university project. It's well worth a visit, especially for the nice selection of photos, videos, and audio.
And speaking of Barth, I can't resist reposting this from David Williamson – this is Rowan Williams on Barth's obedient theology:
Somewhere in all of this business of theological education we have to come to terms with that sense of an otherness, an elsewhere – not another place, another realm, another world but that which is not simply on the map of our concerns, our security, our ideas. An obedient theology is one which seeks to be formed by what is there and a holy life is one which lets itself be impacted, be impressed by the will of God. For Karl Barth, that meant of course, that an obedient theologian was someone who was free to be the most dramatic possible nuisance in church and world. Obedient to the otherness of God, such a person would be obedient to no other constraints and no tyranny that could be concocted on the face of the earth.