To whom it may concern,
I currently am taking a biochemistry course online (which is much more difficult than in a traditional classroom setting) and have use your videos and tutoring in the past, which I have found extremely helpful. I noticed that you have organic chemistry but do not have a biochemistry tutoring section. After some perusing your different subjects, there is a lot of information of the biochemical sense nestled under the MCAT listing. I just wanted to make a suggestion that maybe a seperate biochemical topic header under your science subject (like organic chemistry) would be extremely helpful for many people. I love what this site is all about and how helpful it can be. Khan Academy is a wonderful resource, I'm just trying to make a helpful suggestion! Thanks!