Take this as offered. Because it’s all over the internet and not difficult to find, I’ll reprint it and give you the link.

BUT Pandora is a free service for the first 40 hours monthly and then they ask that you pay a buck. One dollar. That doesn’t seem outrageous to me and it might be the right thing to do – no I’m not a prude, but I am a businessman and believe that people should be paid for their work. If enough people opt-out of paying you may lose the service, as advertising is in deep trouble right now.

OK, so enough preaching:

MACINTOSH:
* In your Home directory, open Library > Preferences > Macromedia > Flash Player > #SharedObjects
* You’ll find a bunch of directories in here with various randomly generated names like JZK819C3P and H8R1ZK19M, etc – these are basically cookies for Flash Player and if you don’t mind losing other settings elsewhere, you can delete all these folders to reset your Pandora music limit, but if you’d rather preserve other settings and just reset Pandora, read on…
* In the Finder window Search Box, type “pandora” and then select the folder “Macromedia” as your search directory rather than ‘This Mac’
* Delete just these files/folders, they’re usually labeled pandora, pandora.com, and #pandora.com
* Ta da! Your Pandora limit is now reset and you have another 40 hours to listen! Alternatively, you could just pay the $1/month to use Pandora, it’s such a great app it’s worth it.

WINDOWS (XP/Vista/7):
* Navigate to C:\Documents and Settings\USERNAME\Application Data\Macromedia\Flash Player\#SharedObjects
Replace “USERNAME” with your user name
* Same as above, there will be a bunch of random folder names, you can delete them all, or just the ones containing ‘pandora’ in the name
* Now navigate to C:\Documents and Settings\USERNAME\Application Data\Macromedia\Flash Player\macromedia.com\support\flashplayer\sys
* Find the folder named ‘#pandora.com’ and delete it, or just delete all the files
* Finally, navigate to C:\Documents and Settings\USER\Cookies and delete everything labeled ‘pandora’

Following all these directions, and you’ll be listening to Pandora free of the forty hour limitation again! Enjoy!

Does some of that look familiar? It’s available word for word at the below source, which is easy to find.

Good Luck!

-a guy named duh
References :
http://osxdaily.com/2009/08/30/how-to-get-around-pandoras-40-hour-music-limit/

* Navigate to C:\Documents and Settings\USERNAME\Application Data\Macromedia\Flash Player\#SharedObjects
Replace “USERNAME” with your user name
* Same as above, there will be a bunch of random folder names, you can delete them all, or just the ones containing ‘pandora’ in the name
* Now navigate to C:\Documents and Settings\USERNAME\Application Data\Macromedia\Flash Player\macromedia.com\support\flashplayer\sys
* Find the folder named ‘#pandora.com’ and delete it, or just delete all the files
* Finally, navigate to C:\Documents and Settings\USER\Cookies and delete everything labeled ‘pandora’

Following all these directions, and you’ll be listening to Pandora free of the forty hour limitation again! Enjoy!

Plagiarism is Back!

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References :

An example, I had two browsers open with the same account logged in. I was at 35 hours on both, but listened to just one for five hours and got the notification. I tried to use the other browser, seeing that it still read "35 hours used" but immediately after playing one song it seemed to check and notified me that I’d ran out of time.
References :
experience, plus they seem pretty serious about it.