Do you know of someplace where people likely to support a smoke free city tend to congregate?  If so, you can spread the word by putting up a flyer.  Clicking on the image of the flyer to the left will bring up a new window containing camera ready copy that you can print.  The file is in Adobe PDF format.  To view and print the file, you need the free Adobe Acrobat Reader, but you can save the file without viewing it even if you don't' have Acrobat Reader.   You can print the file on your printer, or take the file to a commercial printer.  Kinko's supports PDF files, and will let you transfer files to them over the web.  However, it's probably easiest to print they flyer yourself.