It's a few years old, but James Shewmaker of Bluenotch and SANS did a preso at ChicagoCon:
Le’go My Stego
James Shewmaker, Bluenotch, SANS
What happens when viral marketing meets hidden data? In the new media world of Web 2.0, massive content can hide massive data. How can steganographic techniques survive media conversion? This talk will discuss the impact, potential, and demonstration using freely available remote storage to stash your data.PPT - 81.9 KB MP3 - 14.0 MB - 39 Minutes
James Shewmaker has over 15 years experience in IT, primarily developing appliances for automation and security for broadcast radio, internet, and satellite devices. He is one of the first GIAC Platinum certified Malware (GSM) experts. Jim has written and audited questions for GIAC and is on the Advisory Board. Jim is a founder and active consultant for Bluenotch which focuses on investigations, penetration testing, and analysis. He has contributed to the courseware in various SANS courses including Security Essentials and Reverse Engineering Malware: Advanced Techniques.
Hope that helps,
CISSP, MCSE, CSTA, Security+ SME