There are 2 great ways to promote products on the Internet for FREE. These are my great ideas on internet marketing.
What you can do is sign up as an affiliate marketer. Go ahead and search under affiliate marketing on Google. You'll be overwhelmed and surprised by the amount of companies that have affiliate marketing programs. Did you know Disney has an affiliate marketing program? Find a product.
Once you do that, the greatest way to promote it is by article marketing. The thing about article marketing is that it's free. There's work involved but if you like writing then this is really your cup of tea. Check out the keywords that relate to your product. Use the Google Keyword Tool. Search your keyword that relates to your product and you'll see many phrases that use this keyword that people have searched with. Choose words that are under 3000 monthly searches. Choose the ones you like and start writing. Always stay on the subject and put your affiliate link at the end of the article.
The second way to promote your product is to go on forums, answer questions and leave your link. Try using answers.yahoo.com or/and ehow.com. Also, find blogs that write on your subject or product. Comment on the blogs and leave your link. In both of these cases, please try to be helpful, don't just leave your link. You'd like to have some relationship with these authors. Also, many of these people need assistance and if you can do this then you would be well thought of as well.
Make sure to do two articles a day between 300-500 words. Answer questions on articles at least once a week for a couple of hours. These are two great ways to get your product known for free. If you want more great ideas on Internet marketing check out my websites below.