Five months ago, Google rattled the nerves of webmasters everywhere with its widely-publicized mobile algorithm update. The effects of the change were not immediately apparent; in the weeks following the update little movement was seen in search results.

Time is beginning to show that Google may — at least for the moment — be taking a gradual approach toward pushing sites to become mobile-friendly. Some movement is beginning to become apparent. According to Searchmetrics' 2015 Mobile Ranking...