These vary greatly from being free to thousands of dollars depending on some factors. There are different models of advertising and different services offered by sites at different rates. These factors will help you decide which can go easy on you and your budget when you look at internet advertising costs.
Websites around the web require money to afford all the bandwidth to maintain their up time so they offer paid advertising to people who may be interested. Generally the more popular the site is, the more expensive it is. The advantage of investing in these sites is the high likelihood of attracting people.
Knowing your target audience is essential because it directly affects the rates. First you want to know what area you want the advertisement to be. Obviously if you prefer the advertisement to be all around the site and its network, you can grab the attention of all types of visitors. Of course this will result you higher internet advertising costs. By fully observing the site, you can get an idea where people go and focus your advertising on a smaller area to save costs. Ad placements in certain locations may be higher if they stick out more.
Usually, advertisements are targeted for everyone regardless of where they are. Some sites have the option of targeting your advert to specific locations (known as geo-targeting) for an additional cost. This will restrict your clicks or impressions to a selected crowd giving you better chances of getting the right people.
The content of your ad can greatly affect the cost. How big is it? Does it have text, graphics or video? The larger or more in-depth the advert is, the more costly it is.
With these factors in mind, we can proceed to the advertising models. Cost per thousand impressions (CPM) and cost per click (CPC) models are two of the accessible means of advertising with low internet advertising costs. Both charge pretty cheap and are usually by bulk of impressions or clicks. Impressions have higher bulk and much cheaper than clicks. Many pay-to-click sites offer this service for as low as $1-$10 while bigger sites like Google can charge a much higher amount. Google's rates are fully customizable based on demands, but they are more expensive due to their contextual support. Cost per action (CPA) models is much pricier than the others because you get guaranteed visitors in.
So which can be best for you? For starters, free advertisement mediums should always take priority before money is invested in these sites. There are many spots around that offer free advertising. Forums allow you to put banners on your signatures giving you unlimited impressions and clicks to all who see it. Don't let big sites like Google be in control of your cost per click unless you need full exposure to your website from a large scale. It is better to find a niche and start with that. Start cheap and work your exposure up slowly and chances are you will get higher impression to click ratios. Don't use video if you can make simple and creative banners. Banner ads can have a $0.25 to $2 CPM as opposed to video ads at $45 CPM on average. Keep in mind the factors that affect the internet advertising costs and you'll be fine.