The web-based applications are accessed and used through a browser rather than a standalone program. Business Week alleges Google will "charge corporations a subscription fee amounting to a few dollars per person per month."
The company currently has a free service for businesses, called Google Apps for Your Domain , which enables businesses to use web-based Google services while keeping their original email addresses. The web giant also provides applications such as Google Docs & Spreadsheets free of charge.
For Google to start charging for the applications, the company will have to improve their reliability - some users experienced a period of downtime last week, for example. The functionality provided will also have to increase; currently the services lag behind Microsoft Office or OpenOffice by some margin.
Google has posted an announcement regarding increased language support for its Docs & Spreadsheets application.