Dear City: Spacing and Pattison to post billboard love letters

Spacing magazine, working with the billboard company Pattison Onestop, is planning to post Twitter love letters to various Canadian cities as part of a public art project.

Tweet a 140 character letter to your city [by June 1] to the @DearCityCanada Twitter account. All acceptable letters will be displayed on mall screens across Canada for two weeks this June, reaching 5 million people a week. The best letters will be displayed on outdoor digital billboards across Canada this summer, and of course letters will be retweeted via the @DearCityCanada account.

The billboards will be up for two weeks in Vancouver, Surrey, Pitt Meadows, Calgary, Edmonton, Regina, Winnipeg, Sudbury, Kitchener, Hamilton, Toronto, Peterborough, Kingston, Ottawa, Montreal, Quebec City, Moncton, and Halifax.