I am open to all creative ideas. However, here's my own concept: on the LEFT side, a world globe inside a brain (similar to Brain1.jpg, Brain2.jpg, Brain3.jpg, or Brain4.jpg - concept for Brain1 might be the best). On the RIGHT side, the word "CourseWorld" (one word). (Since the site is about learning and has "world" in the title, it seems like a good idea to have a globe inside a brain.)
Also, see current logo ("Old CourseWorld logo.png") which is the basic right idea but could be greatly improved. Also, this old logo has the brain on top of the word, whereas they should be side by side. And, the image is too large compared to the text.
Also see Homepage.png to get a sense of how it will fit into the homepage (though homepage design is subject to change).
Overall, this is a cutting-edge, nonprofit website that is part of the revolution in e-learning and online education. And it also focuses on the liberal arts (including the arts and humanities). I want a sleak, modern-looking logo that represents this.