1. Give visitors a free subscription to your e-zine. Almost everyone is publishing a e-zine nowadays so it's important to give something extra with the free subscription. You could offer a free gift or advertising when people subscribe.
2. Provide your visitors with free content. Your content will be more magnetic to your visitors if it's up-to-date or original. You could also offer people the option to republish the content in their e-zine or web site.
3. Offer a free online directory. The directory could be full of interesting ebooks, e-zines, web sites etc. If people find your directory to be a valuable resource they'll visit it again and again.
4. Give your visitors free ebooks. You could also include your own ad in the ebook and permit others to give it away. If you don't want to take the time to write one, you could ask other writers permission to use their articles.
5. Hold free online classes or seminars. They could be held in your web site's chatroom. The idea of "live" information will definitely entice people to visit your web site. You will become known as an expert on the topic.
6. Give visitors a free entry into your contest or sweepstakes. The prizes should be something of interest or value to your visitors. Most people who enter will continually revisit your web site to get the effects.
7. Let visitors download free marketing softwares. You could even act part of your site into free software directory. If you created the software, include your ad inside and let others give it away.
8. Offer free online services or utilities from your web site. They could be search engine submitting, copy writing proofing etc. The service or utility should be helpful to your target visitors.
9. Give free consulting to people who visit your web site. You could offer your cognition via e-mail or by telephone. People will believe this a huge value because consulting fees can be very expensive.
10. Give your visitors a free membership to your online club. People want to belong to something, why not your online club. You could also give away a free e-zine for club members only.