New blogs on roll

In several cases, I'm surprised that they're not already on the blogroll, my apologies folks.

Newly-added are:
Bad Astronomy (Phil Plait)
Old man in a cave (Fergus Brown)
Greenfyre's
Hot Topic -- Global Warming and the Future of New Zealand
Die Klimakrise (in German / auf Deutsch)
Rust Never Sleeps
Stoat (William Connolley)

Farther afield, I'll mention
erv
Greg Laden's Blog

Plus, it'd be a help if someone could explain how to set up Digg links easily, and preferably, automatically. According to sitemeter, a fair number of folks are finding this blog by that route. I'd as soon make it easier. Similarly reddit. Explanations of technorati also welcome.