the APOD used to be posted every day here, but the FReeper who did it got ill (I think) and had to stop. No one ever picked it up.
If you want to post it daily I think you will find a lot who would be interested. If you do, please add me to your ping list for it.
actually, according to this from petuniasevan he stopped because of work. here's hoping it gets going again.
http://www.freerepublic.com/focus/f-chat/1185625/posts
If I wanted to create a ping list, wouldn't I just copy names and save them in a word document? Then copy/paste them in my reply? Or is there a better way. KevinDavis already has a space ping list.