http://turbotax.intuit.com/tax-tools/tax-tips/Tax-Planning-and-Checklists/The-Gift-Tax/INF12036.html
If you give people a lot of money, you might have to pay a federal gift tax. But the IRS also allows you to give up to $13,000 in 2011 to any number of people without facing any gift taxes, and without the recipient owing any income tax on the gifts.