What is the meaning of Supplemental Result

Supplemental Result
I have seen this phrase beside some of my pages URLs on Google Results
What is that?
is that is harmfull ?
How can i treat that?

 

read the official words about supp. results on http://www.google.com/support/webmasters/bin/answer.py?answer=34473 .

you can be sure that there is no difference between hell and supp. results

i also suggest you to read http://www.seo4fun.com/notes/supplementals.html

 

What are the reasons which make someone fall on that hill?

 

- It is an index where sites with duplicate content and pages with no links go.

- If you do not do anything else, your site will be out of index.

- Steps
1.) Rewrite and reword your content.
2.) You must have a backlink in each pages of your site.

 

Put different titles, meta tags in each page.

Write unique content for each page.

Have other websites link to each page (not just the main URL).

Link all your pages together.

 

Here is reasons why google put pages on supplemental results....
Please click this link: http://forums.digitalpoint.com/showthread.php?t=284182