Falcon 9 first stage sails into Port Canaveral atop ASDS (nasaspaceflight.com)

The drone ship is just docking now, once it's docked they will crane the first stage off and take it over to pad 39A to perform test firing.

There is a lot of extra information at the SpaceX subreddit and the Nasa Spaceflight Forums.

https://www.reddit.com/r/spacex/comments/4ee2zy/crs8_ocisly_...

https://forum.nasaspaceflight.com/index.php?topic=40002