Do people just say, here's 10 000 email addresses; go to town with it! ??
I'm guessing there is a right way to do it.
First of all, being up front with your opt in page.
Let them know that you often search for good quality opportunities that match the one they opted in for and they will be receiving them as part of the subscription.
Is it really swapping lists when you pitch someone else's offer to your list?
It's not as though you are giving away their personal information. You are just presenting a different offer...???
I'm sure there is such a thing as moderation and not over-doing it. Also, being up front and honest.
How do you do it?