Spreadsheets Frequently Asked Questions - FAQ of the comp.apps.spreadsheets usenet newsgroup.
VisiCalc - One of the first "killer apps" for personal computers. Information from its creators, Dan Bricklin and Bob Frankston.
Spreadsheet Tools and Their Producers - List of spreadsheets tools and books and their authors.
GNU Oleo - A GNU spreadsheet.
GS-Calc - Offers 512 columns and 2,097,152 rows, hierarchically organized worksheets, 2D and 3D charts, unlimited undo/redo, OLE client/server and COM functions. Description and screenshots of the program, online ordering.[Win9x/ME/2000/XP]
mySpreadsheet: - Offers a multi-user, web-based spreadsheet system. Online demo and presentation of the company.
Mariner Calc - For the Mac, version 9 or X. Description of the product, presentation of the company.
European Spreadsheet Risks Interest Group - Promotes research regarding the extent and nature of the problem of spreadsheet risks.
3D-Calc - Proposes a free three-dimensional spreadsheet program for Atari ST computers.
Sharp Tools Software - Proposes a Java, Excel-compatible spreadsheet.
eMiddleware - Provides spreadsheet technology to work with established systems. Company information and product description. In Germany and the UK.
Abykus - Full-featured object-oriented spreadsheet for Windows. Freeware.