The Office 2.0 movement is bringing some heated competition to Microsoft Excel by offering free online spreadsheets nearly as rich in features and with the perfect price tag.
While most of these online spreadsheets are still in beta, many are still very reliable and stacked with enough features that you won't miss your old spreadsheet.
Description: The best of the best among free online spreadsheets, Zoho Sheet stands out from the pack by offering a host of features in a nice package with great performance. The ability to import from and export to so many different formats makes it easy to get up and running, and a feature set that rivals desktop applications makes the choice an easy one. Zoho Sheet is also part of the Zoho suite of online applications which includes Zoho Writer, a great online word processor.
Description: Among the best of the free online spreadsheets, ThinkFree's calc offers a quick edit mode for making small changes and a power edit mode for creating advanced worksheets. Having most of the features you would expect in a desktop application, ThinkFree can easily replace your existing spreadsheet. Since it is part of the ThinkFree office package, you can also use their online word processor or presentation software.
Description: EditGrid is an enterprise-capable Office 2.0 spreadsheet that is free for personal users. EditGrid has a simple look-and-feel consistent with desktop applications, so you can hit the ground running. EditGrid comes with a number of templates to help you get started, and this free online spreadsheet also works on the iPhone, so you can take your calculations with you when you are on the go.
Description: Not as pretty to look at as some of the other offerings, Google's spreadsheet is still a strong contender. It is bolstered by being part of Google Docs which also offers a word processor and presentation software, and it is also integrated with Google's personalized start page, iGoogle.