For writers of Young Adult and Middle Grade, here's an opportunity to pitch to literary agents, and a chance to receive feedback ahead of time, the Write On Con Mid-Winter Pitch Fest.
Write On Con is a free online conference held over the summer. I participated the last two years and made a lot of connections with writers. You can read articles and view videos on writing and publishing, and you can do more interactive stuff like post your first page and query letter for critique.
The "Perfect Your Pitch" workshop is from February 18 - March 10. You can post your pitch on their forums and receive critiques from other writers. Submission for the actual Pitch-Fest begin March 10. According to their site, here are the participating agents:
Alyssa Eisner-Henkin, Trident Literary Amy Tipton, Signature Literary Brielle Johnson, Writer's House Dawn Frederick, Red Sofa Literary Eddie Schneider, JABberwocky Literary Jason Yarn, Paradigm Literary Jennifer Flannery, Flannery Literary Kathleen Rushall, Marsal Lyon Literary Logan Garrison, The Gennert Company Mollie Glick, Foundry Media Peter Knapp, Park Literary Sara Crowe, Harvey Klinger
It looks like this is for Young Adult and Middle Grade only,although I did see New Adult thrown in there on the site. .