Remember the famous internet rumor that made the rounds in 2006: “ AOL is trying to tax your email, write in now! ” Was it a rumor? Let’s take a look how things have shaped up, since that hit the internet. One year ago, Cindy Cohn of the Electronic Frontier Foundation “ blogged a piece ” about this. How AOL and Yahoo were going to use the Goodmail system to allow senders to choose to cer…