Hmm, I actually solved it now.
I put the characters next to each other, like this:
JJJ.GENIRYZNWVT.PBZ
Now I tried to figure out what kind of message would be hidden. First I tried to see if the Js could be another character and form a sentence, but I did not find any English word with three identical letters.
But then I saw the familar shape and tried substituting the Js for Ws. That meant moving down the alphabet 13 steps. I did that for all other characters and I got this link:
WWW.TRAVELMAJIG.COM
Unfortunately it doesn't seem to go anywhere, but it was definitely a funny challenge. ^_^