I'm developing an electronic parts inventory web app because I needed a better way catalog, order and share parts. I couldn't think of a better way than a spreadsheet to display the dozens of parts a user might have. Each part has an ID from the schematic, name, value and description which are displayed using a dojo data grid (Very happy with dojo grid btw). The rest of the attributes are hidden until the user needs them. There is a lot of data and comparisons being done and spreadsheets, it seems, were my only choice. The electronics industry hasn't solved this either. Take a look how ugly and overwhelming the product search is from Digikey, Mouser or Newark.