Titlz intends to provide data and trends on the book publishing industry - historic data, sales rankings on books on Amazon, trends on topics and titles. Although still in development, book industry professionals can currently use TitleZ for free.
Bookalert provides hourly trackings of the Amazon rank of your - or other - books.
Michael R. Drew's blog on the book publishing industry. Includes categories such as building your own promotional platform.
Bubblecow is a UK firm offering copyediting services, but the blog is a great resource for writers interested in the publishing business.
This is an excellent, concise guide to formatting short stories
and novels. Part of the Science Fiction and Fantasy Writers of
America website.
If you're considering approaching an agent, you need to know
about this site. It's the go-to resource for writers who want
to know whether the person they're considering approaching is
legitimate.
You don't need to buy an expensive subscription to Publishers
Weekly magazine to read its stories. At this site you'll find
news, reviews, and hundreds of articles.