But, come on, that doesn't mean you should plaster a hundred ads or a dozen banners on every page of your web site. A banner here and there, a small button or a few text links is fine, but I've seen some web sites that have dozens and a few that have hundreds of ads on each page! Now this is just tacky and is virtually guaranteed to get your visitors to hit that handy back button fast.

One of the worst kinds of web sites, in my opinion, are those that are just huge advertisements. Especially those that are advertisements for dozens or even hundreds of other services. People do not surf the web looking for banners, text links and other advertisements to click on. In fact, statistically, most people are surfing because they are looking for (a) information, (b) entertainment, or (c) someone to talk to. Most web surfers are not looking for something to purchase.

A good web site offers excellent content (which can be graphics, text or interactive features). Even those sites which sell something also offer content which is of interest to their visitors. Go take a look at any really good shopping site and you will see what I mean. Look at Amazon or Barnes And Noble and you will understand - these sites offer tons of content. Reviews of their products, consumer comments and large amounts of data about the items being sold. This is what people want - information. Some common things on web site that you should never do.

Notices saying "please, pretty please, keep my site free and click on something". This just makes you look like a rank amateur. In my humble opinion, it's very tacky to expect people to click on links just so you can "keep your site free". Come up with or find a good product or service, and sell it if you must. Advertising is not in of itself of value – only products or services have value.

Web sites that are just advertisements - I suppose there is a place for brochures or full site advertisements, but I personally hit the back key as soon as I run into one of these. I want content. If I wanted this many advertisements I'd buy a magazine or look in the classified section of the newspaper.

Any large graphic advertisements. Remember one of the very important things in web design is load time. Your site must load fast. If you include large graphic ads you are increase your load times.

Popup Windows - If you do a survey of web surfers, you will find that these are among the most hated "features" that exist. No one likes pop up windows, and if your site has too many of them you will loose visitors fast. Oh, you may get a few more clicks or signups for your newsletter, but the amount of time your visitors remain on your site will be limited and of less quality.