In the old days, you sent SMSes but you can't spam multiple people at once. You can only send one SMS at a time (unless you program something, which Housewives don't do...)
BBM supports Groups already but it's kind of slow (at least the old BBM anyway). I don't know if WhatsApp is any faster or whether WhatsApp has any limit on how many Groups member you can have (because it is essentially almost like Twitter).
50 is a good number of people, especially if you're doing sample sales i.e. 1pm - 4pm special sales in a secret location by XX designer. For instance you can whatsapp a group of well-known fashion bloggers, who may forward the invite to a group of friends etc etc creating a semi-exclusive shopping experience
I've seen people do it for yard sales too (what we call void deck sales) It's a bit like a tupperware party.
Something similar to this: http://storify.com/cbccommunity/kuwait-entrepreneurs-use-ins...
In the old days, you sent SMSes but you can't spam multiple people at once. You can only send one SMS at a time (unless you program something, which Housewives don't do...)
BBM supports Groups already but it's kind of slow (at least the old BBM anyway). I don't know if WhatsApp is any faster or whether WhatsApp has any limit on how many Groups member you can have (because it is essentially almost like Twitter).