Obama takes the lead with another emerging technology: temporarily embedding advertising inside video games. The technology is only 18 months old, and Obama is the first presidential candidate to buy space for the Xbox Live system. "The ads — appearing on billboards and other signage — remind players that early voting has begun and plug a campaign Web site that encourages people to register for early voting." The video game ads are targeting 10 battleground states that allow early voting, including Ohio, North Carolina, Nevada and Florida among others.

Aaron Pava, co-founder of CivicActions, is an Internet Strategist committed to social empowerment through innovative and pioneering technologies. Aaron heads the professional development group and serves as business developer and client engagement manager.