(deleted 5 paragraph dismissive rant until I found out that this is part of a project for tools for STEM education, i.e. this is meant for educational samples only) I think it's rather important to look at it with that in mind.
The advantage for students is that they can view the modules directly in a browser (desktop, Chromebook, iPad, etc.), and interact with the modules immediately. No need to download spreadsheet documents that require compatible spreadsheet software.
However, we also see Blabr as a candidate in other science/engineering areas. For example, these blabs are for phase locked loop design:
* http://blabr.io/?01bec2bf0256d05f5b2d. * http://blabr.io/?0d6aa64641772d438350
We think that these are viable alternatives to using Excel. They could serve as online, interactive data sheets for semiconductor company websites.