Does anyone know of any services available where the company has a list of e-mail addresses (be it personal, or business) and you pay them a fee to send an e-mail to this list? Obviously spam is not cool, so I would be looking for opt-in or double opt-in lists. Has anyone had any experience doing something like this? If so, positive results or waste of time/money? Thank you!
There are some get paid to read or receive emails, they were popular some years ago (people received a few cents to read emails, so no spam) but I never tested them myself so I cannot give unbiased reviews...