@Ikjot Gill, no, if you are just starting out, I do not recommend direct mail. What I said was that it can be very effective if you really know your audience and have a compelling, differentiated, message.
Having a compelling differentiated message is actually the key to consistent lead flow for any method. I personally think the best way to get to know your audience, and develop that message, is by door knocking and talking to people in person. I think that is was Brett and Sam were also saying, which is why I said it was the most effective.
Here are my recommendations for you:
1. Schedule a demo with our support team. Sounds like you are already using our service, but it doesn't sound like you really yet know how to use it. They can show you a ton of options including an answer to your Facebook question.
2. Do some door knocking. I know it sucks, but you will learn a lot, a lot faster than you will with cold calling, online ads, ringless voicemail, email, or any other method. Why? Because in person feedback will help you figure out what to say (or not say) to get a deal/listing.
3. Once you have a message that is working in person, then try it by phone. Keep your expectations low, most folks in foreclosure aren't going to answer their phone. Expect to make a lot of calls. But it's faster than door knocking, and can be as effective - IF you already have a good pitch.
4. Once phone is working, then move on to ringless voicemail, online ads, direct mail, etc with that same message. This works to help you scale, but only if you have a great message.
Expect a learning curve with each step. Expect each step to kind of suck for a while and be really hard. Don't say it doesn't work until you've knocked 100 doors, made 200 calls, or had your online ad reach thousands or tens of thousands of potential customers. Only a small percentage will ever respond - even if you have the right phone number for every one of them.
My investor customers have purchased $40B+ in real estate, and my agent customers have likely listed a similar amount (harder to track so I don't know for sure). The folks that succeed with rare exception do some variation of what I outlined above. The one's that don't succeed, bought into a bunch of get rich quick, easy button, b.s., and never really worked hard enough to have a chance.