PiticStyle

I found on Oreillynet.com an interesting article about what is WEB 2.0!

What Is Web 2.0

The bursting of the dot-com bubble in the fall of 2001 marked a turning point for the web. Many people concluded that the web was overhyped, when in fact bubbles and consequent shakeouts appear to be a common feature of all technological revolutions. Shakeouts typically mark the point at which an ascendant technology is ready to take its place at center stage. The pretenders are given the bum’s rush, the real success stories show their strength, and there begins to be an understanding of what separates one from the other.

The concept of “Web 2.0″ began with a conference brainstorming session between O’Reilly and MediaLive International. Dale Dougherty, web pioneer and O’Reilly VP, noted that far from having “crashed”, the web was more important than ever, with exciting new applications and sites popping up with surprising regularity. What’s more, the companies that had survived the collapse seemed to have some things in common. Could it be that the dot-com collapse marked some kind of turning point for the web, such that a call to action such as “Web 2.0″ might make sense? We agreed that it did, and so the Web 2.0 Conference was born.
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• CPC: Cost per click. The actual dollar value you pay. Some people reserve CPC for banners that charge by the click and PPC for sponsored ads on search engines.

• CPM: Cost per thousand impressions. Allows you to compare costs from one ad venue, or type, to another. If an ad costs $500 for 10,000 impressions, your CPM is $500 divided by 10, or $50. Because most PPC sites also provide the number of impressions, you can compute CPM for your PPC campaign.

• CTR: Click-through rate. The number of clicks divided by the number of impressions. Expect costs for a click-through to be higher than costs for an impression.

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