Most of these websites will make very little profit (if any), the vast majority will lose money for the owner. But get it right, do it properly and you can make thousands if not millions of dollars profit and it's not really that difficult.
Follow these simple guidelines and you will give yourself a real chance of making some good money in the shortest possible time.
Your pixel ad site must target a specific niche, this is the only way the small guy on a limited budget will get near the top of search engines and gain the traffic needed to generate huge sums of money. Your niche must be very specific for example. If you intend to build a jewelry pixel ad site, you would need to target a small section of this market. For instance you could take ads only from New York jewelry stores or Rolex watch suppliers. Another example might be a city pixel site, where you list only websites with a connection to the particular city. An example of this would be my own pixel website. Manchesterlinks.com
Yes I know what you are thinking, how can he give advice when his own site has only a few ads. Well I am in the process of building the foundations for my website. Building links, getting good search engine positions for my targeted keywords and getting my site talked about and recognized as a good place to advertise. Only then will I work at selling my ads and when I do I know it may take a couple of years, but I will fill my grid and make a very good profit.
Please remember potential advertisers will only spend money with you if they feel their ads will bee seen by people specifically looking for their product or service. Would you pay a salesman to stay at home and hide your product under the bed? No, well if you don't get your website out there and seen before you try to sell ads, that's exactly what you are asking your potential customers to do.
The potential to make money from your pixel ad website is truly fantastic, you just need to follow these guidelines and stick with it. Don't expect overnight success, as with any business, you must be prepared to put in the time to reap the rewards.
Once your pixel site is almost full with advertisers, don't think it's time to move on. There are still some great opportunities to make more profit from your site. For example, my own pixel ad site manchesterlinks.com will evolve into a complete web portal for everything Manchester related. This will give me great scoop to get repeat business from a whole range of new advertisers.
To sum up, find a niche to base your pixel website on, get listed in as many free places as possible. When the money starts to flow in, use some of this to generate as much publicity as possible. The very key to your success is how popular you can make your website look to tempt advertisers to spend money. This will most certainly come if you follow my advice and work at it