I am a big fan of Evernote. Admittedly I don’t use it nearly enough but as a business card storage tool, alone it is worthwhile. Check out this official Evernote elevator pitch to see why it can help you… keep in mind that it is VERY VERY easy to use which isn’t demo’d in this pitch.

http://www.youtube.com/watch?v=wmNks09GZ3s&feature=player_embedded