How could you not think that this is useful to know?
About a month and a half ago, Google introduced a new algorithm that would help the average Googler receive search results uncluttered by spammy-ish, "low-quality" content farms. While Demand Media's eHow escaped the initial fallout, it's now at the top of the"Losers" chart compiled by SEO analysis site Sistrix.
My colleague Rosa Golijan gave a very good translation of Google's revamped ranking system, which I'll repeat here: "It means that you should start seeing far fewer search results which include links to 'content farms' — sites practically bordering on spam that are specifically tailored to attract Google searches — and more links to what Google considers high-quality sites."
High-quality, as defined by Google: "Sites with original content and information such as research, in-depth reports, thoughtful analysis and so on."