Google search algorithm changed with more focus on original content

Yesterday Matt Cutts posted that Google has changed their search algorithm to focus more on original content. Below is an excerpt from his post:

My post mentioned that “we’re evaluating multiple changes that should help drive spam levels even lower, including one change that primarily affects sites that copy others’ content and sites with low levels of original content.” That change was approved at our weekly quality launch meeting last Thursday and launched earlier this week.

This was a pretty targeted launch: slightly over 2% of queries change in some way, but less than half a [...]