Social media among threats to greeting card makers

Fewer people are sending paper greeting cards, a worrisome challenge for the nation's top card company.

Hallmark Cards, Inc. announced last week it's closing a Kansas plant that produced a third of its signature product.{} 300 people will lose their jobs as{}the company shifts work to two other plants.

Hallmark and companies like it are dealing with a cultural shift in which consumers are increasingly choosing cheaper and quicker ways to communicate.{} It says{}over the past decade, the number of greeting cards sold in the U.S. has dropped from 6 billion to 5 billion.{}{}

Hallmark executive Pete Burney says competition in the industry is "formidable" and that consumers have more ways to connect digitally.