Australian Taxation Office - The ATO site is a handy reference point for contacts and tax calculators
CPA Australia - The CPA Australia website provides updates of any changes to legislation.
MYOB - Bookkeeping Software (Books Onsite is a Certified Consultant for MYOB Software)
Quickbooks - Bookkeeping Software (Books Onsite is a Partner with Quicken Software)
The Small Business Accounting Guide - Site by certified Accountants offering free! expert advise on business startups, accounting, taxation, strategic business planning, affiliate marketing,budgeting and much more.