UPDATED (4/17/13): A selection of tributes and memories from those who knew, and read, Roger Ebert. More will be added as we collect them:
"For a generation of Americans -- and especially Chicagoans -- Roger was the movies. When he didn't like a film, he was honest; when he did, he was effusive -- capturing the unique power of the movies to take us somewhere magical.
"Even amidst his own battles with cancer, Roger was as productive as he was resilient -- continuing to share his passion and perspective with the world. The movies won't be the same without Roger, and our thoughts and prayers are with Chaz and the rest of the Ebert family."
-- President Barack Obama, April 4, 2013