In 2006, worldwide online advertising grew 34% from 2005. Many e-marketers predict worldwide online advertising expenses will have grown more than 100% by 2011. Total amount is expected to increase from 18.6 billion in 2005 to 29 billion in 2011.
The internet is not only a vital part of everyday life, but also a product marketing platform that offers instant interaction and attracts visitors and business opportunities. Ad placement and presentation have become very important. The goal is to not only leave a good impression, but also attract more traffic flow.

Banner Ad Meets the Internet
Banner ad is the most prevalent advertising method on the internet. Early banner ads were mostly basic, static picture file format presentations. Like banners, these ads were usually placed atop the homepage.
　　Banner ads can be utilized independently or with other tools depending on the marketing strategy. The initial purpose was to attract visitors of content websites, which is similar to the function of traditional advertising. However, the instant interaction of banner ads allows visitors to connect to the website with a simple click. Now, numerous banner ads adorn the Web in flash or video clip format, enhancing ad effect.

The Right Fit
After purchasing ad space on a website, marketers eagerly anticipate large traffic flow. However, selecting the right webpage for displaying the ad is extremely crucial. Before ad space selection, marketers must first analyze which type of website out of the countless websites on the internet is the most suitable.
Generally speaking, websites can be categorized into the following types:

‧Portal Sites or Search Engines: Numerous visitors, more visibility
‧Content Sites: Numerous loyal visitors
‧Commerce Sites: Large sites with visitors anticipating new products
‧Partner Sites: Banner ad exchange to reach visitors on sites of partners and assocations
‧Topic-Related Sites: Visitors likely interested in related contents and products
‧Community Sites: Fixed visitors who might be a website’s target audience

Aside from selecting the right website for ad placement, understanding which webpages bring in the most visitors is also highly important. An advanced web analytics system can determine where visitors derive from and monitor key external sites to grasp marketing effectiveness.

Generating Results
Banner ads have multiple designs and many different placement options. All these factors have an effect on marketing performance and ROI.
    Content suitability must not be underestimated as a key to a successful banner ad. Web administrators need to know which content groups have high or low visit rate and browsing rate. They can then carry out different marketing for different contents, placing the right banner ads to increase exposure and attract visitors.
　　With assistance from a web analytics system, web administrators can easily track the performance of banner ads and learn which ads are attractive, which ads are successful, and which ads fail to draw visitors. The system can collect and analyze these data effectively, helping web administrators update ad design, placement, and marketing strategy.
    Aside from monitoring the performance of banner ads and attracting visitors, marketers must also optimize webpage process flow design, making sure visitors follow the expected path. Determining the conversion rate at each stage of process flows such as member login, newsletter sign-up, and online shopping allows marketers to learn where visitors are lost and how to eliminate these problems.
　　
　　Options for banner ad are increasing. From simple, static pictures to today’s high-tech videos, marketers must fully grasp the performance of their banner ads and optimize their webpage designs. This breakthrough is the key to value-adding and generated results.