Google says its updated search algorithm will impact 35 percent of Web searches and is intended to deliver more relevant search results.

You might wonder why the company decided to make this change. It's answer: The new algorithm was a necessary update to the previous one, entitled Caffeine, which was put in place last year. With Caffeine, Google says, search results were 50 percent fresher than before. Last week's update will make Caffeine return more up-to-date and relevant search results. It affects recent events, hot topics, current reviews, breaking news and anything else considered hot and new by the time you Google it.

Different searches have different freshness needs. This algorithmic improvement is designed to better understand how to differentiate between these kinds of searches and the level of freshness you need, and make sure you get the most up to the minute answers.

According to Google, this doesn't mean that old articles are thrown away if someone posts something new. Some things can be helpful even if they're old, after all, and Google assures us the new algorithm will be able to tell the difference between good, bad, old and new. Like every major algorithm change, this one will have a downside: Some 35 percent of Web searches will be changed, and 35 percent of website owners will be happy/unhappy. Which one are you?