If selling ad space or joining an affiliate program doesn't suit you, your last shot at making any kind of profit from your website would be to collect emails. How does this work, you ask? By simply collecting emails from users that are interested in what you offer on your site, you can rent or sell the list to a third party - you get paid, your client gets to advertise to a targeted group of people and those receiving the promotions won't mind as they have opted-in to receive commercial emails. It's an easy way to make everyone happy and make an extra buck.
Of course, you really have to assure that you are going about things the right way. If you're doing email collection on your site, whether you're offering a newsletter or a free prize give-away, you should make sure to follow through with your promise, first of all; don't give people false hopes. Although it may seem pretty harmless, if caught you could face serious charges. Also, if you're planning on sharing the list, state so in the terms and conditions and assure that users have read them first before signing up for the special offer. Normally, including a check box accompanied by a link to the terms and conditions page in the sign-up form is sufficient. You can, however, include the entire set of rules and regulations in a scroll window just before the button to submit the form.
The same thing goes for those purchasing an email list. Be sure to find out how the list was generated and whether or not a third party was mentioned in the terms and conditions. Assuring that the list was acquired in a proper way keeps you on the safe side. With spam being such a big problem these days, you want to do everything you can to avoid being wrongfully charged.
Allowing your visitors to sign up for newsletters or contest gives you the opportunity to collect email addresses of a targeted group of people. Because the mere act of sending out emails can be costly, a targeted email list is much more valuable because the individuals being contacted are more likely to respond in terms of purchases. This saves you time and money, both of which are highly valued.
Email collection is an easily achieved task, all you have to do is offer something of interest to you visitors and watch your database fill up. You can set up sign-up forms for newsletters related to your site or ones related to the industry you're in, bargain requests, contests, questionnaires, polls, or tip-of-the-week emails. These are only a few of the thousands of ways to collect emails, so use your imagination and give your users something unique.