Today I made a search for te following on google: css px em
Your referrer URL probably contained the google link, and the site felt it had a "responsibility" to highlight those words.
The site is adapating to the HTTP_REFERER CGI variable?
I think they're right, Webmaster world is a great resource for webmasters... If I remember correctly, they do highlight search terms from the referrer. I don't know why, you can do this with the Google Toolbar or the Google Cache, so it doesn't really add much functionality.
Go go go webmaster world!
Yes we do highlight terms from Google, Yahoo, AllTheWeb, and a couple other selected search engines where we receive the majority of our referrals from. It was quite a bit of work to get it all wired up - I think it is a nice feature too add. It also works for our own site search engine. btw: don't you just love referrers? Such as the way I found this post. lol Cheers.
Tom (a programmer)
Fog Creek Home