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For many casual internet users, the terms SEM and SEO rarely enter their minds when they are busy jumping from one website to another. However, it is these terms that determine much of what comes out on the results page whenever we type in a word in the search tab of any accessible search engine. These terms are also responsible for all those advertisements and pop-ups that link us to even more websites, whether they may be connected to our original search or not. So just what are SEM and SEO?

In the simplest way possible, SEM and SEO are tools which website creators, especially those who are promoting and selling a certain service or product, use in order to gain a lot of exposure and better ranking for their website. Sounds easy enough, right? Well, the simplicity ends there.

To make it a tad bit complex, SEM and SEO are not the same. As suggested by the names, SEM, or Search Engine Marketing, deals more with how a website is marketed to gain exposure in the different search engines available on the internet, while SEO, or Search Engine Optimization, deals with how the web creators develop and re-develop the content, quality and structure of their entire websites so that whenever an internet user types in a particular word in the search tab, their websites have a better chance of appearing on the first few search engine results pages.

Now, to make it even more complex, although the functions of SEM and SEO seem different, they are more effective when used together. Since the main function of SEM is to gain more exposure for a website, the more common means for attraction are online advertisements, blogs, internet articles, partner and sponsored websites, and anything that can catch the eye of the internet user. SEM also makes use of PPC (pay-per-click) and paid inclusion to further push a websites visibility. Lastly, it is also an important process in SEM to submit the name and URL of a website to different search engines and web directories if only to inform them of the websites existence. All this is carried out to ensure the popularity of a website.

So how does SEO come together with SEM? Well, despite having all the advertisements provided by SEM, it is truly the SEO that allows the internet user to easily and conveniently find what he is looking for. Since the function of SEO is to gain a better ranking in the search, the web creator has to constantly optimize his website in order to cater to the needs of the internet user and to make it easier for spiders or web crawlers to judge whether the websites content is relevant to the word/s being searched. Optimization is not a simple and easy task. It involves having to restructure the website regularly (by editing the html code and meta tags, changing content, reorganizing the site map, developing an easier navigational structure, etc.) so as to adapt to the rapidly changing demands of the internet user. Still, when done properly, not only does SEO help a website become more useful and therefore, more often visited by the internet user, it also helps gain more exposure since it increases the websites chances of gaining a better rank in the SERPS.

Both SEM and SEO success rely heavily on the words or context which Internet users type in whenever they search for something on the internet. Take PPC under SEM, for example. PPC is an ad that is triggered by a particular word or context used by an internet user. Once a particular word or context is searched, a corresponding PPC ad for a website comes out. SEO works in the same way. The web creator inputs a particular Meta tag (or keyword) in his html that he believes many internet users will use when searching for information, information which the web creator’s website may contain.

Although all of these processes involving SEM and SEO are tedious and time-consuming, it all boils down to knowing and serving the target audience. A web creator must be discerning enough to know what the internet users need and want, and at the same time he must have the real passion to inform and provide the internet users with the right service and product.

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Influenza Report 2006 is a medical textbook that provides a comprehensive overview of epidemic and pandemic influenza. The download of the PDF is free. Influenza Report has also been published in Chinese, Croatian, German, Indonesian, Mongolian, Serbian, and Slovenian. If you wish to be informed about new chapters or editions, you may subscribe to the Influenza Report Alert.
Please note that you may translate Influenza Report and publish it under your own name - without paying a licence fee. For more details, please check the Copyright Removal Agreement.
The philosophy which governs the publication of Influenza Report has recently been described in Free Medical Information and in Amedeo Challenge.
Chapter

1. Influenza 2006 Bernd Sebastian Kamps and Gustavo Reyes-Terán 30.5.2006
2. Avian Influenza Ortrud Werner and Timm Harder
3. Virology Lutz Gürtler
4. Pathogenesis and Immunology Georg Behrens and Matthias Stoll
5. Pandemic Preparedness Gustavo Reyes-Terán and René Gottschalk
6. Vaccines Stephen Korsman
7. Laboratory Findings Gert van Zyl
8. Clinical Presentation Christian Hoffmann and Bernd Sebastian Kamps
9. Treatment and Prophylaxis Christian Hoffmann, Stephen Korsman, and Bernd Sebastian Kamps
10. Drugs Oseltamivir - Zanamivir - Rimantadine - Amantadine Bernd Sebastian Kamps and Christian Hoffmann

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HIV Medicine 2006
Christian Hoffmann, Jürgen Rockstroh, and Bernd Sebastian Kamps (Editors)Flying Publisher2006825 pp

HIV Medicine 2006 is the 14th edition of a medical textbook that provides a comprehensive and up-to-date overview of the treatment of HIV Infection (825 pages, ISBN: 3-924774-50-1 - ISBN-13: 978-3-924774-50-9;

Download PDFPart 1: Basics

Chapter
1. Introduction
2. Acute HIV Infection
3. HIV Testing
4. Pathogenesis

Part 2: HAART

Chapter
5. HIV Therapy 2006
6. Side Effects
7. Lipodystrophy
8. Mitochondrial Toxicity
9. HIV Resistance Testing
10. HIV and Pregnancy
11. Antiretroviral Therapy in Children

Part 3: AIDS and Related Conditions

Chapter
12. Opportunistic Infections
13. Kaposi's Sarcoma
14. Malignant Lymphoma

Part 4: Special Topics

Chapter
15. The New HIV Patient
16. Vaccinations and HIV
17. Traveling with HIV
18. HIV and HCV Coinfections HIV and HBV Coinfections
19. GBV-C Infection
20. HIV and Renal Function
21. HIV-associated Skin and Mucocutaneous Diseases
22. HIV and Sexually Transmitted Diseases
23. HIV und Cardiac Diseases
24. HIV-associated Pulmonary Hypertension
25. HIV and Pulmonary Diseases
26. HIV-associated Encephalopathy HIV-associated Myelopathy
27. Neuromuscular Diseases
28. HIV and Psychiatric Disorders
29. Sexual Dysfunction in HIV/AIDS
30. HIV and Wish for Parenthood
31. Post-Exposure Prophylaxis (PEP)

Part 5: Drugs

Chapter
32. Drugs
33. Interactions

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