Google to implement new search algorithm on April 21st, mobile search will see the greatest impact

How does the algorithm work, and how can site owner tell if their site is affected? No one seems to know, but the factors of Google’s ranking are not applied evenly which explains why many sites may not necessarily be mobile friendly.
Google has been collecting information from its “Googlebot” to update its rankings for the past month so that its implementation of its new ranking will have an immediate effect. Webmasters and the like have dubbed the 21st as “mobilegeddon,” and there is a push to get sites optimized for mobile before the switch is flipped. It will be interesting to see if we, as users, will be able to notice the change as we use Google search.