Here’s a power-searcher tip that didn’t get much attention the first time around, so I wanted to mention it. Tara Calashain recently wrote about changes to Google’s date search features.

Previously, perharp Google estimated the age of a url as the last time that we fetched that page. Given how quickly Google refreshes its main index, that didn’t mean quite as much recently. Now for date-based search, Google estimates url ages by the first date that we saw a url.

Here’s an example. A normal search for [Google] looks like this:

If you restrict the results to the last three months, the same search for Google gives more recent urls:

Those results are all things that launched in the last three months. And if I try it with something like [toronto] and I see recent discussion of SES Toronto instead of older urls.