Unfortunately, few commercial websites will be able to earn much money from advertising, especially banner advertising. Destination sites that receive a huge amount of website traffic, and Sites narrowly targeted towards customers whom advertisers are willing to pay big bucks to reach. To see why I say this, let's look at what's happening in Internet advertising. Let's see how this works out. With tens of thousands of websites there is often unsold inventory available, especially on untargeted sites.
Media buyers work on behalf of advertisers, while ad rep agencies work on behalf of website owners.
Ad rep agencies generally don't deal with companies that have fewer than a million or so page views per month, unless these sites are highly targeted. Let me explain what I mean by targeting. In the chart below you'll see how CPM rates can get very high for a few select categories of websites. Most, however, fall into the category of untargeted or semi-targeted. Degree of Targeting Examples Approximate CPM Untargeted Visitors to a search engine's front page, a portal site, or information site on a general topic such as presidential politics.