Abykus
- Full-featured object-oriented spreadsheet for Windows. Freeware.
- http://www.abykus.com/

eMiddleware
- Provides spreadsheet technology to work with established systems. Company information and product description. In Germany and the UK.
- http://www.emiddleware.com

Sharp Tools Software
- Proposes a Java, Excel-compatible spreadsheet.
- http://www.cs.columbia.edu/sharptools

3D-Calc
- Proposes a free three-dimensional spreadsheet program for Atari ST computers.
- http://wwwaxs.com/atari/

European Spreadsheet Risks Interest Group
- Promotes research regarding the extent and nature of the problem of spreadsheet risks.
- http://www.eusprig.org

Mariner Calc
- For the Mac, version 9 or X. Description of the product, presentation of the company.
- http://www.marinersoftware.com

mySpreadsheet:
- Offers a multi-user, web-based spreadsheet system. Online demo and presentation of the company.
- http://www.myspreadsheet.com

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]
- http://www.jps-development.com/gs-calc.htm

GNU Oleo
- A GNU spreadsheet.
- http://www.gnu.org/software/oleo/oleo.html

Spreadsheet Tools and Their Producers
- List of spreadsheets tools and books and their authors.
- http://www.emsps.com/lists/ssutilp.htm

VisiCalc
- One of the first "killer apps" for personal computers. Information from its creators, Dan Bricklin and Bob Frankston.
- http://www.bricklin.com/visicalc.htm

Spreadsheets Frequently Asked Questions
- FAQ of the comp.apps.spreadsheets usenet newsgroup.
- http://www.faqs.org/faqs/spreadsheets/faq/

The Spreadsheet Page
- Spreadsheet help, history, links, and even illustrated jokes. Files, FAQs, and release list for Excel, Lotus 1-2-3, and Quattro Pro, but mostly Excel. By John Walkenbach (JWalk and Associates), author of the spreadsheet column for PC World magazine.
- http://www.j-walk.com/ss/