Foodies may be serious about eating, but apparently they're serious about computers: Fast-food chains, food companies, and food celebrities are raising their profiles on social-networking platform Facebook.
Last month, we mentioned that Pizza Hut was the first fast-food chain to launch a Facebook online ordering system, so die-hard users never have to leave the site to order dinner. And yesterday, number one fast-food chain McDonald's launched a Facebook fan site of its own to honor the 25th anniversary of its wildly popular Chicken McNuggets.
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