I hadn't listened to longwave NDB's in a long time (mid-90's), but Chanter's longwave log inspired me to take a listen.
First of all, there is a lot more garbage down there than there used to be.... especially around 300khz.
My log: (from Central Kentucky)
0130z 516khz YWA Petawawa, CAN
0135z 433khz IZN Lincolnton, NC
0136z 426khz IZS Montezuma, GA
0143z 419khz RYS Detroit, MI
0150z 417khz IY Charles City, IA
0152z 417khz HHG Huntington, IN
0200z 400Khz CI Sault Ste Marie, MI
0202z 398khz HFY Indianapolis, IN
0210z 392khz ML Charlevoix, CAN
0212z 391khz OO Oshawa, CAN
0222z 388khz AM Tampa, FL
0223z 388khz CDX Somerset, KY
0224z 382khz YPL Pickle Lake, CAN
0225z 382khz IRS Sturgis, MI
0227z 379khz BRA Asheville, NC
0232z 351khz YKQ Waskaganish, CAN
0234z 347khz ANQ Angola, IN
0236z 340khz GN Lexington, KY
0237z 338khz UMP Indianapolis, IN
0238z 335khz LUK Cincinnati, OH
0240z 329khz JV Near Louisville, KY (I think across the river in IN)
0242z 329khz AAA Lincoln, IL
0244z 329khz YHN Hornepayne, CAN
0245z 278khz NM Matigami, CAN
0252z 260khz BVQ Glasgow, KY
0254z 254khz HLB Batesville, IN
0255z 245khz PWF Batavia, OH
0256z 242khz LE Lexington, KY
0257z 239khz HKF Middletown, OH
0258z 233khz QN Nakina Airport, CAN
0300z 224khz BH Birmingham, AL
0301z 223khz YYW Armstrong, CAN (just west of Nakina)
0302z 219khz OQ Indianapolis, IN
0303z 216khz CLB Wilmington, NC
0304z 215khz DLZ Delaware, OH
0305z 212khz MPZ Mount Pleasant, IA
0306z 210khz IOB Mt. Sterling, KY
0308z 198khz DIW Dixon, NC
0310z 189khz Broadcast station - ICELAND (probably the best I've ever heard it).