In case you're curious, here are some good pieces.
12 Things to Know and Share - Jimmy Akin (via The Curt Jester). Everything from "what's an encyclical" to what happened to the journalist who leaked it to what you should believe.
10 Things That Won't Be In Pope Francis's Encyclical "Laudato Si" - Acts of the Apostasy (again via The Curt Jester). Which means it will be funny (#8 Indulgences will not be granted if you install solar panels on your house). There are some calming words of common sense included too.
Beware of Early Media Speculation - GetReligon
Pope Asks For Open Hearts - Vatican Radio (via The Deacon's Bench)
Here's the link to the final version at the Vatican website.