Pull one of your listings up on one of the big boys. Like vultures, there will be 3-4 other agents listed to contact on the side.
Back when I worked for C21, three of us in the same office were advertising on "the biggest boy". All three phones rang at the same time. Poor lead, as he was speaking to me, my friends were leaving him voice-mails.
He did not buy from any of us...
I get really frustrated with the way these internet lead generation companies conduct business. Our business has definitely changed a lot since I was first licensed in 1999.
One of the big ones tried it with me, I didn't bite. I have been asked to join the other BIG BOYS and have declined.