What services do you all use to encode your PHP files? When scripts are "domain locked" or "encoded" what services are the best/worst? Post them here!
zend is a popluar tool. You have to be however carefull when you use the PHP acceleration tools with it. eAccelerator used to work with zend, but now it's does not. ionCube is the other big boy on the block. phpcodelock is apparently good too, but have not used it myself so can't give a personal recommendation.