According to JupiterResearch's recently released report, "Measuring Unique Visitors: Addressing the Dramatic Decline in the Accuracy of Cookie-Based Measurement," in 2004 58% of online users have deleted "cookies", which are small files often deposited on their computers by Web sites they visit.

Use this calculator to determine the marketing ROI (Return on Investment) for any direct mail or e-mail campaign.

The mistakes they have identified and how to aovid them.

I am a chemical engineer and have been writing copy designed to sell products and services to engineers for 10 years. Here's what I know about appealing to this special audience:

A whole range of ideas relating to the American University Library

MediaPost has two stories today that start to answer a larger question about how the Internet will fare in a weakening economy. For some time people have been speculating that if the economy hits a meaningful downturn or heads into recession, what will happen to the Internet ad spend?

The Economist has identified influential US bloggers and leaks tips and stories to them, in order to create online buzz before the articles are published in the Economist.

Those rapid-fire "HeadOn, apply directly to the forehead" spots are arguably among the worst commercials ever from a creative standpoint. They're annoying, repetitive, obnoxious -- and effective. Another view about so-called "interruption" marketing!

Positioning is something (perception) that happens in the minds of the target market. It is the aggregate perception the market has of a particular company, product or service in relation to their perceptions of the competitors in the same category.

Seth Godin remembers learning new words and phrases by the barrelful in business school. As a business-book writer, he's exposed to them all the time. Many of them are actually quite useful, because they give you precise words to describe things that would be difficult to communicate otherwise. For example, telling someone that a particular hedge fund is "highly leveraged" is a lot easier than saying, "They've borrowed a lot of money in order to speculate and multiply their positive returns using other people's money." On the other hand, ....

Australia has just introduced it's "do not call" register and the sigh of relief around Australian dining tables is audible.