I'll be glad to share my own experience.... I got some contact thru this forums, but being it all overseas persons I can't say how serious they may have been ... so far just some msg exchange under the premises of the impossibility of any meeting.
In my own country, the landscape is even worse: the only contatc that seems to work are those between masters, who want to share their slave with equally minded "educators". When I had my own slave I got many interesting contacts with other masters and with couples master-slave. Now that I am slave-less, still these contacts remain and I happen to be invited to sessions by other masters. Someone even introduced me to some interested slave.
The contacts to slave-girls, on the contrary, are miserable. On chats there are very few women and potential slaves, those few are like queens and enjoy their hunting grounds in a manner that is anything but submissive. They are courted, adulated, invited, persecuted by an enormous number of masters or want-to-be-masters and they seem to really enjoy it. When a contact occurs, mostly it is a man pretending to be a woman. The situation is not very different on mailing lists and forums.... few slave girls, mostly all already taken, who enjoy a large number of men who just hope to be able to fascinate one of them and to get thus a slave.
I find it very interesting to see, how these alleged slave girls enjoy actually dominating a group of alleged masters, just flirting and exerting the power of their submissive pussies as an irresistible bate.
I know for sure that, at least some of them, are real slaves in their present consistent relation with their masters, but in the list, or in the chat, I find an inversion of the power exchange and the behaviour of most of these aspirant masters becomes sometimes really ridiculous and self-humiliating in their desperate wish to be appreciated by the few alleged submissive women.
Perhaps there is some more chance in getting a response from a submissive woman by means of a strict personal ad on the net, or better, on magazines and newspapers (not erotic magazines, though) ... it worked a couple of times for me.
Among my friends I know some who say they have found their slaves on a chat or a mailing list .... others admit they never had any success by these means. Perhaps it depends from the amount of time you are ready to invest.
Of course luck plays an important role ... like in all human matters.
I take this opportunity to advise any italian submissive woman who may be reading this forum and might be looking for a capable master, to please contact me.... BDSM ways are infinite and misterious
Kurt