Bookkeeping/Accounting
Fresh Books – http://www.fresbooks.com
Outright – http://www.outright.com

Word Processing/Collaboration
Google Docs
NeoOffice
Buzzword (buzzword.adobe.com)

Legal
Nolo.com
Find Law

File Transfer/Storage
Drop Box

Printing
Vista Print
UPrinting
Moo Print

Project Management/Task Management/Time Tracking
Basecamp
Pivotal Tracker
HarvestApp.com
OnePlaceHome.com
ToDoist.com

Other
Neat Receipts
Blinksale.com
Authorize.net
Mind Map
Mind Meister
xMind.net
eLance.com