Nuclear Regulartory Commission
http://public-blog.nrc-gateway.gov/tag/nuclear-power/
This blog is more political, the contents of the posts are official and written in the form of published articles. Some examples of what you would find are "The three Mile Isl;and Nuclear Plant", "The NRC wants to put the U in Strategic Plan", "Marking the three years of Post Fukushima Progress" and "Personal Accountability supports an organization's safety culture." If any of these topics appeal to you, I'd suggest checking it out! Its professional and includes proper citation for who wrote their articles.