The Citizen's Briefing Book, which was an initiative started by the Obama administration to gather ideas from the public, had its comment process close on January 19, 2009. This project allowed citizens to propose and vote on policy ideas, and the most popular ones were compiled into a briefing book for the administration's consideration.

For more detailed information, you can refer to the archived White House web pages or the Sunlight Foundation's coverage of online civic engagement from that period.