Why do we search? To find something we want, or to find the truth about a question we have. But what if some people disagree about the truth?
Most questions are easy to search for (like, "How hot was it in Danville between March 20 and 23, 2012?"). Right? Let's see how long it takes you.
But some questions, like "how hot WAS that?" (Has that a record? How much higher than the previous record? When was the last time a heat record for March was broken, and by how much?") and "What does it MEAN that the record was broken by that much" (for our tree sap, for planting crops, for the plants and animals, for our roads, for the near future, for the far future, as a confirmation of some pattern or as an interruption of some pattern) - these are more difficult to find answers for if you don't know how to search.
And then, one needs to know how much to trust the answers - which means knowing who put the information up, and having an idea why.
Here's how: http://www.youtube.com/watch?v=BNHR6IQJGZs
Screening: The next thing to do is to open only the pages that look like likely candidates. What do you need to figure out to decide which pages are "likely"?
TLD which we'll play a game
Previewing: The next thing to do is open up "likely" pages in new tabs . You can do this with right-clicking, OR you can tell Google to always do this via the "Settings" gear - put a check next to "Open each selected result in a new browser window".