One of the smaller features that has made its way into Visual Studio 2010 is Reference Highlighting. The following screenshot illustrates how all calls to the method MethodToBeCalled, as well as the method itself, have been highlighted. This means that you can easily scan up and down a file to see where this method has been called (quicker than calling Find All References or loading the new Quick Search window)

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At this stage this feature doesn’t appear to work across files (ie selecting a method in one file and seeing it highlighted in other open files) or across assemblies (ie selecting a method call in the code of one assembly and seeing a highlight appear in another file from a different assembly).