There is no ping list - I’m extremely techonologically challenged.
You can, however, bookmark “dbdailyupdate.com” and check in every morning around 7:30. I pretty much never miss that self-imposed deadline for having a new piece up.
I run these ping lists: Jack Booted Thugs, 3-D Printer, Nut-Job Conspiracy, Birther, Sharknado, Red Dwarf, Ebola/Emerging Diseases, Harry Potter, and the seldom used Homosexual Minority Humpback Whale ping list.
Easy-peasy...