Blatant self promotion: I think codeproject.com, @codeprojectnews and the CodeProject weekly Web Development newsletter are good sources of web dev news. 

Of course, I would think that - I put those news feeds and newsletters together. I spend a chunk of every day wading through a variety of sources I've discovered over the years, including Twitter, hundreds of blogs I follow via RSS and a constantly changing group of news aggregators. I wade through it all and find what seems like the best stuff so you don't have to. 

My former employer, MSDN Magazine, also publishes some top-notch articles and columns.

Some other particularly good sources are Smashing Magazine and Nettuts+. It's also well worth your time following Bruce Lawson, Christian Heilmann, Elijah Manor, Encosia (Dave Ward), John Papa and the proprietor of this blog, Rey Bango.