People will buy your products quicker when you offer a bonus. When you write and give away a free course you will become known as an expert. This'll gain people's trust and they will buy your main product quicker. Allow others to add your free course to their own product packages. Their customers will see your ad when they purchase.
People love to get freebies.
A free autoresponder course is perfect. They will visit your web site to get the free valuable information. Allow people to receive your course for free, if they give you the e-mail addresses of 3 to 5 friends or associates that would be interested. Allow other people to give away your free course. This will increase the number of people that will see your ad in the course.