Office
Typing/Data Entry
Bookkeeping
Invoicing/Collections
Customer and Client Relations
Payroll/HR
Desktop publishing such as marketing material, memos, PowerPoint Presentations, etc.
Ordering supplies (and helping to find the best rates for current or future vendors)
Social network updating, Internet research, Blogging, Marketing, and Posting
Proofreading, Editing, Formatting and Structurizing