Referral string parameter

help deciphering

[Tastatura]

I was going through my logs and noticed referral strings with parameters that I can't say for sure what they mean. One looks like:

www.google.com/search?q=kwd1+kwd2+kwd3&hl=en&safe=vss&domains=www.example.com&start=10&sa=N

what does &domains=www.example.com bit is telling me?

Second one looks like

www.google.com/search?q=kwd1+kwd2+kwd3&rls=com.microsoft:en-gb:IE-SearchBox&ie=UTF-8&oe=UTF-8&sourceid=ie7

What does &rls=com.microsoft: ... parameter mean?

Thanks

[dmorison]

domains=example.com propagates the "Search [ ] The Web [ ] example.com" options below the search box.

rls=foo indicates the source and language of the query. "com.microsoft:en-gb:IE-SearchBox" implies the search box built into Internet Explorer, with the locale set to English (UK).