So let me just say, WriteOnCon is a brilliant idea. This is the first year I'm participating (because, sadly, it's the first year I've heard of it).
It's happening August 14-15, but the forums are already open for critiques of queries, first 250 words and first 5 pages. It's mostly for kidlit (picture books through YA), but there will be panels and articles on general writing/agent/pub stuff too.
Go check out their schedule and see if there's anything that entices your interest. I'm sure there's a lot! I'll be perusing the forums, so come say hi!