I am currently trying to get two studies done that I've spent over 2 years recruiting for from our psychology participant pool -- still only have as many participants that most grad students get in a month or two. obviously should've picked a more diverse place for these topics, but it's a common problem for most of us at the the typical university, I assume.... so thought we all might be able to share suggestions!
I have posted ads on tons of websites (facebook, cragislist, etc.), used mturk, emailed out listservs, student groups, professors at different uni's, etc., and still short/lacking replies.
I specifically need more Black and Latino participants, and don't have tons of money -- can usually only offer lotteries ($100-200) as an incentive.
Anyways, if anyone else wants to pool resources, or has suggestions for me, that would be great! thanks!