A couple of days ago when we wrote about a tiny start-up that raised venture capital for an online collaboration tool built around Microsoft Excel we did not fully realize how crowded the market is. Today Mashable has put up a very nice and comprehensive list of all things spreadsheet – or in other words 14 online spreadsheet applications, eXpresso among them. Nice thumbnails are taken on any of the sites below and can be seen on Mashable. 

BadBlue.com – Features free personal accounts or paid enterprise class services for sharing Excel spreadsheets over the web.

Blist.com – Still in private beta, and here is the Mashable’s detailed write-up on what you can expect from this new spreadsheet app.

EditGrid.com – You can upload your existing spreadsheets, start new ones, and share & collaborate with friends and colleague.

Google Docs – No list of online spreadsheet apps would be complete without the ubiquitous mention of Google Docs. It feels, and looks, a lot like Microsoft Excel and is easily shareable with others.

InputWebWizard.com – Works your spreadsheets with a database so all of your data is stored in a SQL database. System is set to help you develop web apps, but still seems a bit pricey at $499 a month.

JotSpot – Import and Export with Excel, copy-and-paste from Excel, share the documents, even use hyperlinks and attach files.

Numbler.com – A plain, straightforward, collaborative spreadsheet application.

NumSum.com – A more social spreadsheet app where you can leave your work totally open if you choose and allow others to comment on it.

Peepel.com – Import your Excel spreadsheets, work with multiple documents in the same browser window, get an RSS feed of the latest changes to collaborative documents and more.

Sheetster.com – Has the normal online spreadsheet features such as collaboration, but also offers blog embedding options.

Simple Spreadsheet – An open source project that is part of the Simple Groupware Solutions project. Free to use and 100% web based.

ThinkFreeDocs.com – For now, you can not edit uploaded spreadsheets via the site, but they are working on it. Upload what you have and share it.

Zoho Sheet – Part of the Zoho suite of online office applications, Sheet will allow you to import and export with Excel, collaborate with others, and even do quick “throwaway” sheets if you just need to scratch something out.