Some stuff I like:

The Canadian Press Stylebook tip of the week
The Canadian Style
The BBC style guide
The Economist style guide
The Guardian style guide
The Telegraph style guide
The Reuters style guide


World Wide Words
Jonathon Green, slang lexicographer
In a Word: John McIntyre’s musings on obscure words

David Christie’s Doo Dah Diaries

The Comics Curmudgeon

Baseball Reference
USS Mariner
Lookout Landing

All About Work