We have added the Courses tool to the web app. You can access it via the Tools menu.

Some functionality you are familiar with from desktop is currently unavailable on the web app but we are continuing to fill in those gaps as we go. You are now able to start and continue your coursework online and sync it to/from the desktop app.
A few of the known limitations include the lack of self tests, course sections which link to guides/Factbook/etc. do not work, course progress is not visible on the main page, and faceting browsing is not yet available.
We look forward to your feedback as we continue to add functionality to the courses tool.