Dating websites are some of the most popular sites on the Internet today. Millions of people are signed up on free and paid dating sites, giving them a large audience. Free websites, in particular, are able to offer services to members by relying on advertising revenue. The cost to advertise on a website will depend on how popular and established the site is.

Make a list of appropriate websites. There's a huge variety of dating websites to choose from. Some are targeted for specific interests, such as those targeted to people of a specific lifestyle, religion or hobby. These might include dating for Jewish singles, Christian singles, seniors, pet lovers and people in the technology industry. You may want to advertise to one of these narrower markets, or you can focus on the mainstream websites like Match.com, eHarmony and Yahoo Personals.

Visit the websites. You should go to each website on your list to see whether the quality matches the type of market you want to reach. If you sell an expensive or high-end product, you may not want to advertise on a free, poorly designed website. If you are comfortable with the content and design of the site, you can add it to the list of sites to contact for additional information.

Find the advertising information. Look near the top and bottom of the main page of the site. There may be a link to advertising information. If not, try the About or Contact Us pages to find out who to contact. If rates and demographic information aren't provided on the site, you will need to email someone to request a rate sheet. This will tell you how much it will cost to advertise and what types of advertising are available (banner ads, text ads, contextual ads, etc...).

Consider the demographics. Once you've received a rate sheet and demographic information, you should compare them to other sites on your short list. Unless you have unlimited funds, you will probably want to target your advertising to just a few websites to begin. The demographics should break down the audience into sex, age, income and other identifiers. You will also want to pick websites that receive the most views and visitors compared to others.

Design an ad and sign the contract. Once you've found a rate for a website that fits your needs, contact the advertising sales person. She can help you design an ad if you don't already have one you want to use. She will also provide you with an advertising contract that spells out how much you need to pay and when, as well as how to renew when you are ready. Sign the contract and finish designing your ad.