MIT's open courseware has free course material like lecture notes reference material and links online for anyone who is interested in self paced learning. There is a new course called Cognitive Robotics this is for any one who has wondered how beagle or any other robot worked. It gives you ideas on how robots can be programmed to map their environment etc.
NOTE: Upon completion of this course you will not get a certificate from MIT not does this count towards course credits. It is is provided AS-IS for knowledge's sake.