Agent Research and Evaluation. Bill Martin, Beverly Martin, and Daisy the dog are the best. When your manuscript is done and you're ready to contact literary agents, take a look at their services.
Merchants of Culture, by John B. Thompson. How the publishing industry works, or rather, doesn't. It's an academic book but in no way is it boring. When this book first came out, eBooks were just gaining traction so regard this not as prophecy but a thoughtful analysis of how booksellers, publishers, agents, and authors try to do business now. A friend gave me a copy and then I bought 2 more for other writing friends.
GK Design. My website designers, who provide superb technical skills, creative juice, and cheerful support.
Writer's Union of Canada. Provides support and resources for writers while also advocating on their behalf to government and other organizations.
Writers Beware. Blog from a watchdog group sponsored by the Science Fiction and Fantasy Writers of America. Warnings about the latest literary scams, schemes, and pitfalls -- including writing contests.
Author's Salon. Only for "serious writers desirous of publication and completely open to productive critique from qualified peers and professionals". This means I'll lurk for a bit before jumping in.
BLOGS & WEBSITES I ENJOY
Catherine, Caffeinated: the ongoing saga of getting published, self-published, and unpublished from a talented and funny writer who doesn't hold back.