LSI: What?

Could someone please explain me what is LSI (Latent Semantic Indexing)? I have Googled it only to find all Latin and Hebrew. Please explain it in simpler language.
Also how I can use it for better SEO?

Any reply will be much appreciated.

 

ummm you don't know how to search google then.....

http://www.google.com/search?q=Late...s=org.mozilla:en-US:official&client=firefox-a

Its also know as LSA

http://en.wikipedia.org/wiki/Latent_semantic_analysis

Hope it helps

 

Thanks Sem-Advance, for your reply. I have seen the wiki page. But the things written there went well over my head

I wanted some simplified version.

 

It basically means using synonyms and related terms rather than being repetitive with the same keyword.

SEOBook has a good post that may explain LSI better.

 

Thanks SEOVancouver. I shall definitely check the site.

 

This should help you

Best Wishes
l2w

 

Google does not use LSI at the moment. They don't have the capacities for that.

 

I hate to burst your bubble but they have for almost two years.

Matt Cutts spoke about it in 2007 at the SMX conference.

http://www.marketingpilgrim.com/200...sses-themes-and-latent-semantic-indexing.html

Andy has a video up here from the conference.

 

There are several articles on Associated Content that explain LSI in simple terms. Yuwanda Black has an excellent article about it here.

I know Google is using it -- a lot -- but I don't think Yahoo or Ask.com are putting an emphasis on it.