For a basic profile of small businesses in this industry look at the Small Business Profiles for the Standard Industry Codes SIC 9721 and 9722.

http://strategis.ic.gc.ca/sc_mangb/sme/engdoc/homepage.html

There are a number of U.S. based sites that provide informative links and articles:

Cleaners Online http://www.cleanersonline.com/

International Fabricare Institute http://www.ifi.org/

Here is a great article for someone new to the dry cleaning business:

SO, YOU WANT TO BE A DRYCLEANER Avoiding the Pitfalls in Purchasing a Turnkey Store http://www.cyberstreet.com/users/tonyc/clean.htm

For data on dry cleaning expenditures in Canada and trends over the last five years see:
http://www.gdsourcing.ca/CMEinfo.htm