This is one of the hardest, time-consuming, and depressing stages to me. BUT, I found a sight that is fabulous. It’s at querytracker.net
It shows you how to get ALL the agents or publishers name, the box will show how they want their queries sent, who aren’t receiving them at the time and focusing on your genre.
I highly recommend this site whether your a new writer or an author with numerous books out.
Go to literary-agents.com for educational information.
Literary Agents – How to Get a Book Agent, Publisher, and Book DealLiterary Agents – Get free access below to the most comprehensive Guide to Literary Agents online or in print. It features insider information by a former literary about How to Find a Literary Agent and How to Get a Literary Agent (for authors of all book genres). This website also provides free access to the most accurate List of Literary Agents. Our Directory of Literary Agents has the most up-to-date information about Top Literary Agents, New Literary Agents, and Literary Agents Looking for New Writers. We’ve helped authors of all genres, at all stages of development, around the world, get top literary agents, publishers, and book deals.