Yahoo shows my Index-Page 16 times

Is there a Duplicate Content Danger

[nilloc]

Having read on some other posts about Page Hijacking and Duplicate-Content penalities, I searched Yahoo for a sentence that appears in mysite.com

I was very surprised that the Yahoo search results showed 16 results (including 1 time mysite.com) with text snippets from my Index Page.

To see those 16 results, I did need to click on:
"repeat the search with the omitted results included"

Clicking on those 16 links from the Yahoo SERPS one by one, I simply everytime saw my Index Page load in the browser but under a URL that is not from my site.

These are some examples of other URL's showing my Index Page:
- www.mysite.com (OK thats me)
- www.somesite1.co.uk/viewlink-1502.html
- www.somesite2.com/redir.asp?link=2008
- www.somesite3/mysite.htm
- www.somesite4/modules/xoopspartners/vpartner.php?id=321
- www.somesite5/get_url.asp?SiteID=5378
- www.somesite6/cgi-bin/links/jump.cgi?ID=168
- www.somesite7/links.php?action=rated&link_id=48
- www.somesite8/j?3142
... etc

Is this normal?
Anyone else seeing the same for their website?

[george123]

thats bad news for your page have a look at
[webmasterworld.com...]

[internetheaven]

Do you have an affiliate program with any of the smaller affiliate networks?