Here are some useful links

Government Agencies

CRA Income Tax, GST/HST, Payroll

Government Agencies

Service Canada EI, CPP, OAS, SIN, etc

Government Agencies

USA Internal Revenue Service

Government Agencies

European Union Taxation

Accounting Associations

Canadian Institute of Chartered Accountants

Accounting Associations

Chartered Professional Accountants Ontario

Financial Resources

Yahoo! Finance

Financial Resources

International Exchange Rates