Nothing major, but I took a look at Sam's facebook picture and saw something that looked like lights on a plane, I adjusted the brightness to find the words Find815.
I guess this is just a pointer to tell us to look at every image in detail.
Sam Thomas posted a video on Facebook, which linked me to a video hosted by User "Traceyr1975." So far there are two videos, one of Oceanic's original commercial and another of the commercial hacked by Sam. Here's the link:
Here are the latest screencaps of Sam Thomas' Facebook account. Nothing much new besides new friends and you can see the activity from fans figuring out the clues.
Thanks to Randy for the caps.
Once Sam accepts you as a friend you will get a message and invite to the new Find815 Facebook Global Group. Here are some screencaps thanks to Adam: