Updated

FOX News' week-long series marking the 100th day of the Obama administration offers a variety of original stories, videos, polls and FOX Forum op-eds.

You can follow the countdown to the end of the first 100 days by clicking here.

FOXNews.com will have daily coverage, including looks at national security, economic and social policy, image-building, appointments, the politics of leadership and the role of first lady Michelle Obama. Also check out videos from FOX News correspondents on a variety of topics, including the growth of government, the significance of the first 100 days, and other features.

Click below for special reports from FOX News and FOXNews.com:

Obama Fans and Critics Baffled By His Approach to National Security

FOX Forum: Obama Passes National Security Test

Obama Takes Page from Bush's Approach to Foreign Policy

FOX Forum: The Audacity of Obama's First 100 Days

Obama Spending Raises Questions of Too Much, Too Fast?

FOX Forum: Obama Spending Spree Will Break the Bank

FOX News Poll: Obama's First 100 Days

100 Days, Hundreds of Seats to Fill

FOX Forum: Left-Wing Extremists Fill Obama's Administration

Obama Image, Communications Skills Strong, Even as Public Questions Policies

FOX Forum: No Ordinary President

Social Policy Takes a Left Turn Under Obama

FOX Forum: Obama's Next 1,360 Days Are More Important Than the First 100

Michelle Obama Has Big Shoes to Fill But So Far is Walking in Stride

First 100 Days: Obama Nudges Economy, But Policies Stir Fierce Debate