Resources

Associations

ARCSI - Association of Residential Cleaning Services International.
IJCSA - International Janitorial Cleaning Services Association.
IWCA - International Window Cleaning Association.
PCUCA - Professional Carpet and Upholstery Cleaners Association.

Forums

Global Cleaning Association Forum - A community of cleaning business owners.
CleaningTalk.com - Professional cleaning and restoration forum.

Startup Guides

Clean up the Profits - The 'Instant Office Cleaning Kit' by Sam Rodman.
Starting a Cleaning Business Start-up Guide Kit - General guide on starting a cleaning business.