Pay per click

From Wikipedia, the free encyclopedia

Pay per click (PPC) is an technique used on and

Advertisers bid on "keywords" that they believe their target market (people they think would be interested in their offer) would type in the search bar when they are looking for their type of product or service. For example, if an advertiser sells red widgets, he/she would bid on the keyword "red widgets", hoping a user would type those words in the search bar, see their ad, click on it and buy. These ads are called "sponsored links" or "sponsored ads" and appear next to and sometimes above the natural or organic results on the page. The advertiser pays only when the user clicks on the ad.

While many companies exist in this space, and which was formerly Overture, are the largest network operators as of 2006. In the spring of 2006, MSN started beta testing their own in-house service, In recent years agencies have also arisen to facilitate the use of pay-per-click advertising, such as in the UK, leading to refinements in the PPC keywords-matching system. Depending on the search engine, minimum prices per click start at US$0.01 (up to US$0.50). These prices can reach up to GBP£18+ per click for services such as unsecured personal loans. Very popular search terms can cost much more on popular engines. Arguably this advertising model may be open to abuse through although recently and other search engines have implemented automated systems to guard against this.

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History of Google Book Search

In the beginning, there was Google Book Search.

Well, not exactly. But one can certainly argue that the project is as old as Google itself. In 1996, Google co-founders Sergey Brin and Larry Page were graduate computer science students working on a research project supported by the Stanford Digital Library Technologies Project. Their goal was to make digital libraries work, and their big idea was as follows: in a future world in which vast collections of books are digitized, people would use a "web crawler" to index the books' content and analyze the connections between them, determining any given book's relevance and usefulness by tracking the number and quality of citations from other books.

The crawler they wound up building was called BackRub, and it was this modern twist on traditional citation analysis that inspired Google's algorithms – the core search technology that makes Google, well, Google.

Even then, Larry and Sergey envisioned people everywhere being able to search through all of the world's books to find the ones they're looking for. What they couldn't have imagined was that one day they would launch a project to help make it happen. Herewith, a brief tour through some of the major milestones so far:

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Happy Birthday, Google!

Five years ago, Google founders Larry Page and Sergey Brin incorporated their tiny company. The reason? So they could cash a $100,000 personal check that had been sitting in Page's desk drawer for a couple of weeks.

As Stanford graduate students, Page and Brin had been working together on a search engine they called "BackRub" since early 1996. By 1998, with the encouragement of Yahoo co-founder David Filo, they decided to start a company, and went looking for investors to back them.

From the official company history:

"As a founder of Sun Microsystems, Andy Bechtolsheim was used to taking the long view. When he saw a demo of Google he knew it had potential. A lot of potential. While he had interest, he didn't have a lot of time. According to Sergey, 'We met him very early one morning on the porch of a Stanford faculty member's home in Palo Alto. We gave him a quick demo. He had to run off somewhere, so he said, instead of us discussing all the details, why don't I just write you a check? It was made out to Google Inc. and was for $100,000.'

"The investment created a small dilemma. There was no way to deposit the check since there was no legal entity known as 'Google Inc.' It sat in Larry's desk drawer for a couple of weeks while he and Sergey scrambled to set up a corporation and locate a few other funders among family, friends and acquaintances. Ultimately, they brought in a total initial investment of almost $1 million."

Google, Inc. was established on On September 7, 1998. Following traditional silicon valley protocol, the founders hired Craig Silverstein, now Director of Technology, as their first employee, and set up shop in a friend's garage. Google at the time was still in alpha, with an index of just 25 million pages, but it was handling 10,000 search queries every day.

The company grew quickly, and on June 7 1999, the company announced that it had secured a round of funding that included $25 million from Sequoia Capital and Kleiner Perkins Caufield & Buyers.

The rest, as they say, is history. The official history page has all these details, and more.

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