Free resources

• Adobe Buzzword: collaborative word processor application
• CutePDF Writer: PDF creator; free basic service
• Dabble DB: create, manage and share online databases; free basic service
• Doodle: schedule and coordinate meetings and other appointments
• FreshBooks: invoicing, time-tracking and expense service; free basic service
• Google Calendar: shareable calendar and schedule organizer
• Google Docs: collaborative word processor and spreadsheet applications
• OpenOffice.org: open-source office software suite for word processing, spreadsheets and more
• Stikkit: organization and reminder system that integrates with productivity applications
• SurveyMonkey: create and publish custom online surveys; free basic service
• ThinkFree Office: office productivity suite; free basic service
• WuFoo: HTML form builder for creating interactive forms; free basic service
• Zoho: office, productivity and collaboration applications

Source: Entrepreneur Magazine