Virtlab.com offers a chemistry laboratory manual targeted to a simulated web-based laboratory written in Flash. I'm biased because I helped develop it but my authors and I are quite proud of it. The exercises are intended to help students with the quantitative aspects of chemistry and are specifically designed to help spark intuition.

While I believe that there are many different approaches required to round out a chemistry course my authors and I have spent some time exploring how computers might at least support such activities. We put together a site, http://www.virtlab.com/ that includes a "laboratory manual" of instructions that can be used to explore both visual simulations of a laboratory bench and spreadsheets that represent the same behavior as the simulations. We have tried to be thoughtful in the exercises written and I hope you enjoy them! Dave Barkley