WTFViz, ThumbsUpViz, and HelpMeViz by Robert Kosara.
Robert gives a quick heads up on three new visualization sites:
WTFViz – Visualizations done poorly and/or just wrong.
ThumbsUpViz – Good visualizations.
HelpMeViz – Where you can try to avoid WTFViz and hope to be seen on ThumbsUpViz.
More resources listed in Robert’s post.
Where are your visualizations destined?
PS: You owe it to your users to avoid what you see at WTFViz. I was stunned.