What he was talking about was the autofill/autocomplete in Google search. This is what a lot of the TH were saying after the trial. It drove me a little crazy because search engines use an algorithm that pull from the masses to bring the most popular results.
How autocomplete works:
"As you type, Google's algorithm predicts and displays search queries based on other users' search activities. In addition, if you're signed in to your Google Account and have Web History enabled, you may see search queries from relevant searches that you've done in the past. All of the predicted queries that are shown in the drop-down list have been typed previously by Google users.
Predicted queries are algorithmically determined based on a number of purely objective factors (including popularity of search terms) without human intervention. The autocomplete data is updated frequently to offer fresh and rising search queries.
Why do some searches seem so strange?
"In some cases, there may be a search term that seems surprising to you, but after doing some searching on the web, you may discover that it's a popular phrase online for some reason that you didn't anticipate. Queries in autocomplete are algorithmically determined based on a number of objective factors (including search term popularity) without manual intervention."
http://www.google.com/support/websearch/bin/static.py?page=guide.cs&guide=1186810&answer=106230
I typed in chlorophyll immediately after CA stated that's what she did and could not get chloroform to pop up as a search term no matter how I spelled/misspelled chlorophyll, much less 'How to make chloroform'. But a few days later, after hearing all the TH's say that they were able to get the same results CA got by googling Chlorophyll, I typed in chloroform and all kinds of variations came up. It's because of that algorithm. There is no link between chlorophyll and chloroform outside of what CA said on the stand, so IMO there is no way typing chlorophyll in 2008 would have resulted in How to make chloroform, or chloroform.