google 的在线电子表格系统
http://www.google.com/googlespreadsheets/tour1.html
于Jun.6th.06公开推出,现在还在限制测试阶段，需要排队申请，不过很快就会收到邀请:)
呵呵 今天测试了一下,觉得好酷哦~
Welcome to Google Spreadsheets Limited Test
Create, store and share spreadsheets on the web.
Imagine a spreadsheet that's always current and that others can update from their own computers, even at the same time.
Get started quickly.
Import your existing spreadsheets or create new ones from scratch.
Edit your spreadsheets from anywhere.
All you need is a Web browser – your spreadsheets are stored securely online.
Share changes in real-time.
Invite people to your spreadsheets and make changes together, at the same time.
Google Spreadsheets is a limited test. You can try it out by signing up for an invitation on the right.