One problem you might face is that there are already more than a few wikis for this. For the last few experiments I've run, I used sites like these. That said,

One problem you might face is that there are already more than a few wikis for this. For the last few experiments I've run, I used sites like these. That said, you could easily distinguish yourselves. A website that could recalculate concentrations, etc. based on your setup would be neat. To make it even more accessible to newcomers, you should try to one day host a collection of "open" review articles. If I weren't so bogged down I'd love to work on something like this. Good luck!