As defined by Office Online customer response, here are last month's most popular Office Marketplace services, sorted alphabetically by service title.

1. Add-ins for Microsoft Outlook: Add stationery, a spam filter, emoticons, and more

2. Animation Carbon: Copy, reuse and export PowerPoint animations

3. Basic Balance Sheet Template: Basic and common-size balance sheet template

4. CD/DVD Label Creator for Word: Create professional CD jewel cases and labels

5. Click to Convert: Convert your Microsoft Office documents into PDF

6. Code 39 Barcode Font Pack: Insert high-quality Code39 barcodes in Office doc

7. eXtreme Fax: Complete Internet fax service: Free fax software

8. Fonts at Fonts.com: Download 30,000+ fonts for Microsoft Office

9. Gantt chart: Quick and easy Gantt chart creator

10. Inventory Tracker: Manage inventory with auto alerts

11. Invoice creator: Create invoices quickly and easily

12. OmniPage 15: Turn paper and PDF into editable documents

13. Outlook Calendar Schedules: Holiday and sports team schedules for Outlook

14. PDF Converter: Convert PDF files to Word documents

15. PDF to Word & to PDF converter: Convert from Word to PDF and from PDF to Word

16. PhotoGhetto: Royalty license-free photos for Microsoft Office

17. PowerPlugs: Add 3D transitions, video backgrounds, Flash movie

18. PowerPlugs Animation: Animate your presentations, Web sites, and e-mail

19. PowerPlugs Pictures: Illustrate and print projects, Web sites, and more

20. PowerPoint Templates: PowerPoint Templates & PowerPoint Backgrounds

21. PowerPoint Templates: Get professionally designed PowerPoint templates

22. Sunrise/Sunset Times: Add sunrise and sunset times to Outlook

23. Templates for FrontPage: Build quality Web sites using templates

24. Templates for FrontPage:Get a professional look for your site in minutes

25. WACC Calculator: Calculates a company's cost of equity and WACC

Find more services by third-party providers by visiting Office Marketplace.