Are there places to advertise a permafree short story?

There are some Facebook pages (groups) that I post to about my permafrees...  only post there about every other week or so, but when I do I usually see a bump in downloads.  Maybe not huge numbers, but considering it doesn't cost anything, it's not a bad start.  (You have to join the group(s) in order to post, but that's not so bad; I just go to the page every few weeks and post my title.)

Can all the normal promo sites be used for permafree? Just choose a random date for "Date your promo begins"?

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TromboneAl said:

Can all the normal promo sites be used for permafree? Just choose a random date for "Date your promo begins"?

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This is what most of the authors do when submitting their permafree. We allow them on our sites.

Vinny OHare said:

This is what most of the authors do when submitting their permafree. We allow them on our sites.

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Thanks, Vinny. How frequently would "too frequently" be? Once per week? Once per month??

I usually keep the books on the site for a year so once a month may be a little overkill. I see you have a few books so just space them out.