This document discusses factors that affect website positioning and search engine optimization (SEO). It lists both positive and ignored factors for SEO, including keyword density, backlinks, anchor text, and meta keywords. Sources are provided from Yahoo, SEO Book, and other SEO websites on the differences between optimizing for Google, Yahoo, and Bing.

1. Factores que afectan al
posicionamiento web
VS
Irema Ferrez Vega

2. Backlinks
SEO on the web
Keyword density
SEO on page

3. Factores posiCvos para SEO
• Keyword density
• Yahoo directory
• Contenido
• Internal links

4. Factores ignorados para SEO
• Anchor text
• Backlinks
• Metakeywords & h1
• Java & iframe

5. Factores para SEO
• Anchor text
• Backlinks
• Seo on the web
• Keyword density

6. Fuentes
• hKp://styleguide.yahoo.com/resources/opCmize‐search‐engines/seo‐basics
• hKp://www.seobook.com/relevancy/
• hKp://www.seowizz.net/2009/05/difference‐between‐google‐seo‐and‐yahoo.html
• hKp://www.webconfs.com/opCmizing‐for‐yahoo‐arCcle‐10.php
• hKp://www.seomoves.org/blog/google/the‐differences‐between‐seo‐for‐yahoo‐
bing‐and‐google‐1977/
• hKp://www.irkawebpromoCons.com/search‐engines/yahoo/index.html
• hKp://www.seomoz.org/blog/top‐10‐things‐the‐microsoVyahoo‐deal‐change‐for‐seo