They should be related to the subject of your web site. Instead of trading links, you could also trade banner ads, half page ads, classified ads, etc.

2. Start an e-zine for your web site. When people read each issue they'll be reminded to revisit your web site. They'll see your product ad more than just once which will increase your orders.

3. Form an online community. It could be an online message board, e-mail discussion list or chat room. When people get involved in your community they will regularly return to communicate with others.

4. Write articles and submit them to e-zines, web sites and magazines that accept article submissions. Include your business information and web address at the end of the article.

5. Give away an electronic freebie with your ad on it. Allow your visitors to also give the freebie away. This'll increase your ad exposure and attract people to your web site at the same time.

6. Combine your products or services into one big package deal with other businesses offerings. You could share a web site and advertise the package deal; which means double the traffic.

7. Submit your freebie to the online directories that list your particular item or service for free. If you're offering a free e-zine, submit it to all the free e-zine directories on the internet.

8. Participate on message boards. Post answers to other people's questions, ask questions and post appropriate information. Include your signature file at the end of all your postings.

9. Exchange classified or sponsor ads with other free e-zine publishers. If there is a huge subscriber difference between e-zines, one can run more ads to make up for it.

10. Post your ad on free advertising areas on the internet. You can post it on free classified ad sites, free for all links sites, newsgroups that allow ads, free yellow page directories, etc.