I am a member of the netmums website on there is a section called Meet a mum where you can meet mums in your area.
People post I suppose what you would call a personal ad hoping that someone likes the sound of them enough to send them a reply. I have indeed posted one of these ads myself mine was not that successful (It must have been the way I worded it lol)
I have answered a few ads and have met up with a couple, some don't work out (Like the one who was 10 years younger than me, we didn't have anything in common) and one became a very good friend. Next week I'll be meeting two more mummies so we'll see how it goes.
My sister thinks it very strange that I go and met anyone from the internet, personally I think she reads way too many crime books as she thinks they are either going to kidnap me or S or murder us both. My husband is not a huge fan of me meeting up with so called "randomers" either.
I think it is nice that such a service exists I know as a SAHM it does get lonley sometimes and you do crave a bit of adult conversation.