Apple’s iTunes has long been the go-to standard for digital music distribution. In recent years, however, Amazon has been chasing Apple’s tail hot and heavy. And now, Google is set to enter the fray beginning with the (rumored) launch of the new Google Music Store later today. The Google Music Store will work similar to iTunes in that users can purchase and download music for $1. One nice addition that iTunes won’t feature: the ability to share 1-2 free...

