Software Safety .Net, http://www.softwaresafety.net , is a clearing house for items related to Software Safety, particularly in the Embedded Systems and hardware design realms.
I see that our blog here made a list of sites to follow on Stack Overflow. They do list several worth following. Maybe you know of some you would like to add to the list?
I follow Jeff Atwood Coding Horror blog myself. Jeff is the co-creator of Stack Overflow in a joint venture with Joel Spolsky.