It’s been about six months since Bing unveiled its Social Sidebar, and the search engine is now testing a new format that drops the gray background and which shows more matching content from friends and social networks. Before & After Here’s an example of how the Social Sidebar still looks for most people: Here’s the “after” view, or how it appears to the tiny number of people seeing the new look: In terms of visual changes, the new format: Replaces the gray background to keep the sidebar with the same white background as the rest of the search page Replaces the Facebook share box with a “Post” to Facebook button Adds a new “Social Results” header and count for matching social results Changes “Friends Who Might Know” and “People Who Know” sub-headings to “From Friends” and “From Social Networks” Drops “Activity” stream of general questions friends have posted on Facebook Here’s a side-by-side of the main changes, the current format on the left, the new format being tested on the right: One of the changes is that the “hover” display that would appear for the “People Who Know” section is gone. Instead, Bing is showing more expanded information in the newly-renamed “From Social Networks” section. For example, the side-by-side below shows how the old-style gray column listing someone suggested to me as knowing about beer. If I hover my mouse, an expanded card appears to the left of the column: In the new style display, the hover has been removed….