The faster, you can build your opt-in email list, the more money you will make online. It is actually as simple as that. Yet we all know how difficult it is to get just one subscriber for your email newsletter or a single name for your opt-in email list.

Still, here's a useful tip to help anybody build up his or her opt-in email list a lot faster. It is based on human nature, which is always an important aspect for marketers to consider in every promotion exercise they undertake.

Focus on a problem and then point to your email newsletter as the source of numerous excellent solutions for the problem.

Every marketer knows that folks respond much more quickly when they are trying to solve a problem. For instance if you are selling anti-spam software and have an opt-in email list then you should focus on producing useful articles on effective ways of reducing spam. You can then post a small part of your article at article directories and then tell your audience in the resource box at the bottom that to read the rest of your article, they will need to subscribe to your ezine or email newsletter.

This simple technique can help you build up your email opt-in list much faster than you ever thought possible.