Ask HN: Post your OPMLs? What are your must-read sites?

I just installed Shaun Inman's RSS reader Fever ( feedafever.com ) and I'm trying to collect a nice range of feeds to act as Sparks (feeds that help surface hot stories from your main 'Kindling' feeds). I trust the taste of Hacker News' participants and—furthermore—I'm curious to see just how long the long tail of sites we like is.

Care to post your OPMLs? In the name of broader discussion, what feeds can't you live without? What's a site that you think more people should read?