If you have IE7 you will notice they added a google type search box on the upper right, now they let you customize where the search goes to , and you can build tools to let surfers use your custom search in their ie search box
Heres an example demo i made ( its prefectly safe to use and simple to remove )
http://ytmnd.webspacemania.com/search/
heres how to make your own customized search box
first make yourself an xml file in the following format
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  <?xml version="1.0" encoding="UTF-8" ?> 
  <OpenSearchDescription xmlns="http://a9.com/-/spec/opensearch/1.1/">
  <ShortName>Smokey The Bear Porn Search</ShortName> 
  <Description>Smokey The Bear Porn Search provider</Description> 
  <InputEncoding>UTF-8</InputEncoding> 
  <Url type="text/html" template="http://hornydog.webspacemania.com/wmv/?videos={searchTerms}" /> 
  </OpenSearchDescription>
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notice where it says {searchTerms} thats where you input the url to your own search service
so if you wanted to add a youtube search box to your ie you would do it like this
  <?xml version="1.0" encoding="UTF-8" ?> 
  <OpenSearchDescription xmlns="http://a9.com/-/spec/opensearch/1.1/">
  <ShortName>Smokey The Bear Porn Search</ShortName> 
  <Description>Smokey The Bear Porn Search provider</Description> 
  <InputEncoding>UTF-8</InputEncoding> 
  <Url type="text/html" template="https://youtube.com/results?search_query={searchTerms}" /> 
  </OpenSearchDescription>
to initiate the process simply use the following javascript pointing to the xml file we just created
<script>
function fd() {
window.external.AddSearchProvider("http://ytmnd.webspacemania.com/search/stb.xml");
}
</script>
<center><a href=http://www.yoursite.com/thankyou.html onclick=fd();>ADD HERE</a>
p.s. this only works on ie7 so if your using firefox go get a real browser 
