After Day 2 of WriteOnCon, I feel as though I've learned as much as I would at an in person conference.
There was lots of great info for writers of middle grade books in the Industry Pro Panel with Agents Katie Grimm & Sarah LaPolla, & Editors Sara Sargent & Allison Weiss. A couple of tidbits:
From Sarah Sargent, Editor: Writing Girl MG is harder than writing boy MG.
From Katie Grimm, Literary Agent: There's a huge difference between elementary school (ages 9-11) and middle school (ages 12-14).
And from all the panelists: They see a lot of stories about dogs, baking and kids sent to live with oddball aunts.
Another great presentation for writers of middle grade was Differences Between YA and MG (for the Writer Who Does Both) by author Claire Legrand. Here's a sampling:
From Claire Legrand: Make sure middle grade characters aren’t too perceptive or aware of what they’re feeling, because it makes them seem too mature for their age.
There's lots more, but the transcripts are all there, so when you have a chance, you should check it out!
For my take on Day 1 of WriteOnCon 2012, see Learning From WriteOnCon 2012 - Part 1.