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The terms web crawler, automatic indexers, bots, worms, web spiders, and web robots are programs or automated scripts with browse the World Wide Web in a methodical, automated manner. The term web crawler is the most commonly used term.

Web crawlers are a tool used for search engine optimization.

Search engines use web crawlers to provide up to date data and information. Web crawlers provide the requested information by creating copies of web pages that the search engine later processes. Once the information has been processed the search engines indexes the pages and are able to quickly download the pages during a search. The process of web crawling is a key factor in search engine optimization. Search engine optimization is the art and science of making web pages attractive to search engines. Computer people call the process of using a web crawler to rank a website spidering.

Some search engines use web crawlers for maintenance tasks. Web crawlers can also be used for harvesting e-mail addresses. The internet is a gaping ocean of information. In 2000, Lawrence and Giles manufactured a study that indicated the internet search engines have only indexed approximately sixteen percent of the Web. Web crawlers are designed to only download a tiny amount of the available pages. A miniscule sample of what the internet has to offer.

Search engines use web crawlers because they can fetch and sort data faster than a human could ever hope to. In an effort to maximize the download speed while decreasing the amount of times a webpage is repeated search engines use parallel web crawlers. Parallel web crawlers require a policy for reassigning new URLs. There are two ways to assign URLs. A dynamic assignment is what happens when a web crawler assigns a new URL dynamically. If there is a fixed rule stated from the beginning of the crawl that defines how to assign new URLs to the crawls it is called static assignment.

In order to operate at peak efficiency web crawlers have to have a highly optimized architecture.

URL nominalization is the process of modifying and standardizing a URL in a consistent manner. URL nomalization is sometimes called URL canonicalzation. Web crawlers usually use URL nomilization to avoid multiple crawling of a source.

In an attempt to attract the attention of web crawlers, and subsequently highly ranked, webmasters are constantly redesigning their websites. Many webmasters rely on key word searches. Web crawlers look for the location of keywords, the amount of keywords, and links.

If you are in the process of creating a website try to avoid frames. Some search engines have web crawlers that can not follow frames. Another thing some search engine are unable to read are pages via CGI or database -delivery, if possible try creating static pages and save the database for updates. Symbols in the URL can also confuse web crawlers. You can have the best website in the world and if a web crawler can't read it probably won't get the recognition and ranking it deserves.
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By: Li Ming Wong

Uncover The Brutally Effective SEO Software That "Average Joes and Janes" Are Using To - Quickly and Easily Blow Up Their Bank Accounts, Explode Their Traffic, and Triple Their Sales - With Little Or No Extra Work... Effective SEO Software.

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There's something about Cyprus that ensures that it continues to attract visitors from far and wide. With its warm Mediterranean climate and wonderful beach resorts, tourists continue to fly to Cyprus in huge numbers.

The island of Cyprus has experienced some political upheaval during its history and it remains very much an island divided. The northern part of the island is occupied by forces loyal to Turkey, while the southern part of the island is recognised by most of the rest of the world.

For tourists, this political split has had ramifications. Until recently, almost all visitors opted to visit the south of the island. Though things have now changed and it is possible to visit northern Cyprus, it's fair to say that the south retains its popularity.

There are a number of airlines that fly regularly from the UK to Cyprus, departing from a range of UK regional airports.

A brief scan of the internet shows that travellers willing to depart from London airports have the greatest range of options available. Lufthansa, Tarom, Thomas Cook Airlines and Austrian Airlines all operate regular scheduled flights from London to Larnaca.

Paphos, an alternative airport to Larnaca in southern Cyprus, is served by British Airways, budget operator BMI, VLM and Air Berlin, amongst others.

On arrival at one of the airports of Cyprus, you'll usually be met by a holiday company representative if you've booked using a tour operator. For independent travellers, your best bet will be to use a local bus or taxi.

Fortunately Cyprus is very much geared up to the holiday trade. This is a holiday-makers pleasure island.

So what's stopping you? Book a cheap flight to Cyprus and join in the fun!
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By: Keith Barrett

Find out more about Cyprus by visiting the Cyprus airports guide, which has further contributions from Keith Barrett. This article may be used by any website publisher, though this resource box must always be included in full.

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Anyone who has ever suffered or is suffering from acne would have been through the search for an acne cure. Unfortunately, few ever find it, but this is only because they haven't found the right acne cure for them. Each of us is different, and our bodies function and respond to treatment differently. What works for some, may not work for others. However, there are a few proven treatments that provide a cure for acne for a large majority of acne sufferers.

ProActiv seems to be the most popular choice for acne sufferers.. This is a skin care system that contains benzoyl peroxide as the active ingredient. It is an expensive treatment, and it certainly does not cure acne in the long run. ProActiv does nothing to the root cause of your acne therefore proactiv can only be a temporary solution to your acne problems.And this is the case for any and all topical acne solutions.

Accutane, which is a prescription medication, is also quite popular amongst ance sufferers as a means to treat their acne. However, it is also expensive,needs a prescription and as an oral medication, there is the possibility of serious side effects like damage of the liver and the colon. Accutane has a long list of side-effects but the most common ones are it dries your skin, chaps your lips and irritates your eyes.Due to the possible side effects, many choose not to take this powerful drug, even though it may seem to work for the majority of people who use this treatment. But it is also not a long term solution as it does nothing to the root cause of acne.

Then there are others like Retin-a and Murad, anti-biotics and the list goes on and on. But actual fact is NONE of these treatments are going to cure your acne for good!In order to cure acne you need to address and eliminate the root cause of acne and that is usually some sort of imbalance within the body. Why do you think some people have acne while others never ever get a single pimple on their skin or there are those that only get the occasional pimple or 2. Do you think its becasue they are lucky while the others are not? Acne has Nothing to do with luck.

I have heard this line so many times. "Wow she's just so lucky she doesn't have pimple problems." or "You are so lucky! Your skin is so spotless. No pimples or scars! I on the other hand am so unlucky I've had to deal with this my whole life." Acne is NOT your fate! No one is fated to have acne and live with it! Acne has everything to do with your body telling you something inside is not right!

It's up to you how you are going to address the root cause. Certainly, by putting proactiv on your skin, you are not doing anything to address the imbalance in your body. This is why firstly, people should start to recognize that acne is a result of imbalances in your body. Then the next thing you want to do is try to address that imbalance. Most of the time, when there is an imbalance of hormones or your liver is not clearing the toxins as fast as it should or if your blood sugar is out of whack.

The simple truth is...you are out of balance. We now live a 'far-from-natural' lifestyle. There are over 300 synthetic industrial chemicals present in our bodies that did not exist 50 years ago. We are filled with toxins from the food, and medication we ingest and use. By fixing the internal condition that causes your acne by adopting a healthy diet & mindset, cleanse & detoxify, hormonal balancing etc, you will put your body back into balance and your acne will cease to exist. Acne cures do not work overnight but if you take the right steps, you will be rid of acne for Good!

So if you want to start clearing your acne the simple, cheap, effective and ONLY way for good? Then I suggest you start immediately on the program that suits your situation the best. Click on one of the following links.

To Your Acne Free Life!
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By: Sharon S

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Sharon has been an affiliate marketer since 2002. She also owns and runs an established beauty business for the past 10 years.

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