A fellow member of my local writing group - the Clear Creek Writers of Shelbyville, KY - shared this link recently. It is the June 11, 2009 post from Literary Agent Nathan Bransford's blog. It includes links to writing topics and answers common (and not so common) questions that writers ask.
You'll find all sorts of info on everything from how or if you can turn a blog into a book, dialogue tips, handling writer's block and rejection letters, writing good fiction, and oodles more helpful goodies. Whether you agree with everything Mr. Bransford shares remains to be seen, but he does share a wealth of his experience worth taking a peek at.