I just tried to add a paypal button to my facebook page using the method described by Misty. The facebook system gives an error stating 'Cannot post bucause it has a blocked link'. It references this link: http://paypalobjects.com/en_us/i/btn/btn_buynowcc_lg.gif
Things have changed. You can use the email or hyperlink version of the item button code howver, simply pasting the HTML Form version of the code won't work.
