StackSocial offers this Back-End Developer 8-Course Bundle for whatever you want to pay. If you opt to pay the bare minimum of $1.01, that will unlock only two of the courses but if you opt to pay the average (at the time of this posting it's $9.94), you'll receive all eight courses. Assuming you pay the average, that's tied with last week's mention, $980 off, and the lowest price we could find. Note that 10% of your contribution will be donated to your choice of charity. (Choose from Child's Play, World Wildlife Fund, or Creative Commons.) Courses subjects include PHP, Python, and Ruby programming.