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The Search Engine Landscape: 2010 How Users Interact with Engines & How the Search Engines Crawl, Index & Rank Pages Rand Fishkin CEO & Co-Founder: SEOmoz
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Dilbert Explains SEO
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Hopefully, Lots of You Went to MIT http://tech.mit.edu/V129/N49/survey.html
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The Search Market
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PPC vs. SEO in Clicks & Spend ~88% of clicks (US Spend 2009 - $1.5 Billion) ~12% of clicks (US Spend 2009 ~$18 Billion)
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Via AOL Search Data 2007
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Probably Probably Doesn’t Get 42% CTR
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Search Engines & Users
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January 2002 – 33% of all web users search daily May 2008 – 49% of all web users search daily http://www.pewinternet.org/~/media//Files/Reports/2008/PIP_Search_Aug08.pdf.pdf
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We Search More & More Every Month
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4 Major “Types” of Queries
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Crawling & Indexing
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The Difference Between Crawling & Indexing
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The Crawl Selection Process
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No, Really – Even Google Says So
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PageRank: Links as Votes
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The Flow of PageRank
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PageRank is Splits Evenly Between Links
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PageRank is an Iterative Algorithm
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Technically, Every External Link “Leaks” PageRank
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PageRank is Important for Crawling, But… Toolbar PageRank is neither precise nor consistent PageRank is just 1 of 200+ factors for ranking PageRank hoarding is probably bad for your site
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There are Many Levels of Indexation http://www.seomoz.org/blog/crawling-indexing-its-not-as-simple-as-just-in-or-out
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You Can Measure Indexation via Analytics http://www.seomoz.org/blog/indexation-for-seo-real-numbers-in-5-easy-steps
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Or Use Google’s Counts
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Search Engine Algorithms
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Crowdsourced “Guess”
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Ranking Model ~70% Accuracy via machine learning at SEOmoz http://www.seomoz.org/blog/googles-algorithm-pretty-charts-math-stuff
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Domain Trust & Authority http://www.seomoz.org/blog/googles-algorithm-pretty-charts-math-stuff
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Page-Specific Link Popularity
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Link Popularity Comparison
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Anchor Text Tweet Central Anchor Text! (a strong influence on search engine rankings)
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Google Bombing w/ Anchor Text
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On-Page Keyword Usage
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Registration & Hosting Data
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User & Usage Data
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Social Graph Data
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Questions? Rand Fishkin Email: rand@seomoz.org Twitter: @randfish Blog: www.seomoz.org/blog Shameless Plug: www.opensiteexplorer.org
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