Friday, September 15, 2006

About About, 101, Bella, and ivillage

There are an array of megasites which seem to appear in the top listings for alot important keyphrases. I suspect that they know what they're doing in terms of seo. Here's what I'm wondering about...Is there a reason that they use addresses that have the key term on the left side of the URL instead of the right? And, how do they do it? Are these independently listed URLs? Examples:


http://parenting.ivillage.com
http://homeschooling.about.com/
http://specialneedschildren.bellaonline.com/Site.asp
http://autismspectrumdisorders.bellaonline.com/Site.asp
http://specialneedsparenting.suite101.com/

Examples of the other way:

http://about.com/parenting/
http://www.suite101.com/welcome.cfm/homeschool_curriculum
www.amazon.com/100-Top-Picks-Homeschool-Curriculum/dp/0805431381
http://www.time4learning.com/homeSchool-curriculum.htm
http://www.bellaonline.com/site/Homeschooling
http://www.time4learning.com/learning-dyslexia.shtml
http://www.bellaonline.com/site/specialneedschildren
http://www.time4learning.com/learning-sensoryprocessingdysfunction.shtml
http://www.time4learning.com/autism.shtml


Is there a difference in terms of SEO impact? Does this require registering different domains? If not, how do they do it? I thought domains were defined by a common domain name which meant www.domainname.com . I've never fully understood the relationship between www.domain.com and domain.com but I'm not at all sure how to think about www.onetopic.domainname.com and www.anothertopic.domain.com .

Anyone know any articles on the topic?

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