As of 2012, the annual gift exclusion amount was $ 13,000, which means that you can gift property up to $ 13,000 and it's not a taxable event. (sapling.com)
The following gifts are considered to be taxable gifts when they exceed the annual gift exclusion amount. (turbotax.intuit.com)
For example, the annual gift exclusion allows you to make an unlimited number of gifts if the value per recipient is below a certain value. (turbotax.intuit.com)