Jun 19, 2007 at 6:43am ET by Elliance
Early information retrieval systems were fairly simple—they attempted to understand search terms and then provide matching documents where those terms were found. These “on-page” clues were paramount in the ranking of documents in search results.
With the advent of the web, additional “signals” arose, giving rise to additional “off-page” factors that were combined with on-page factors to determine relevance. Google popularized the best-known of these off page factors, link analysis—simplistically, counting the “votes” for each page represented by links from other web sites.
Today, hundreds of on-page and off-page signals are considered by search engines when ranking web pages. Today’s Search Illustrated graphic illustrates this concept:

Graphic by Elliance, an eMarketing firm specializing in results-driven search engine marketing, web site design, and outbound eMarketing campaigns. The firm is the creator of the ennect online marketing toolkit. The Search Illustrated column appears Tuesdays at Search Engine Land.
Opinions expressed in the article are those of the guest author and not necessarily Search Engine Land.
Share, Bookmark & Discuss This Article
More:
Keep Updated: News Via Email | News Via RSS Feed | News Via Twitter
See more stories like this in the Members Library! Check out the Search Illustrated sections of the Members Library where this story is filed. Members also get access to exclusive video content, a members-only weekly & monthly newsletter, plus more. Check out all the benefits!
TOP STORIES
SEARCH NEWS BRIEFS
FEATURES & ANALYSIS
RECENT COMMENTS
Stay on top of all the search news with our daily summary, the SearchCap newsletter. View a sample ›
Search Engine Land produces SMX, the Search Marketing Expo conference series. SMX events deliver the most comprehensive educational and networking experiences - whether you're just starting in search marketing or you're a seasoned expert.
SMX Web Site » | SMX Difference » | SMX News »
Join us at an upcoming SMX event:
Learn more about search marketing with our free online webcasts and webinars from our sister site, Search Marketing Now. Upcoming online events include:
Featured sites from our Blogroll
Become a premium member today and receive:
Just to update, It’s Not Just Google That Treats Underscores Like Dashes covers that hyphens are just fine now.