Codswallop offers "The Freelancer's Toolset." Check out their list of the 100 best web resources for freelancers. There are tools to help with tasks ranging from organization to finance to marketing. A sampling:

  • Remember the Milk, an online reminder service you can use to keep track of deadlines
  • FreshBooks, an internet-based billing center
  • Prosper (a Freelancers Union favorite), where people finance each other's loans