Good and Bad Examples

Soon, we will have a student-generated list of examples of data visualizations.

The following are good and bad visualizations as found and classified by students.

Good

Bad

wtfviz.net has a surfeit of bad visualizations.
An xkcd info graphic (Note: the only reason this is classified as "bad" is because of the magnitude of information that he is trying to get across! Of course it is meant to be ridiculous so in a sense it does a good job of conveying that, but the point still stands that trying to convey too much information is a good way to convey no information at all.)
EagerEyes examples of bad NY Times infographics
Drones
Birth control statistics (the problem is that there isn't a graphic when there easily could be)
Likability Chart
Laundry per family member
iPhone sales
Scientific data with good and bad graphics
Dishonest Fox charts
Energy consumption by source and sector
Developer skills
Attack of the debt monkey
Alien abductions
West Nile
Origins of Tourists in US
Global Warming (it is poorly described)
Lotto Numbers
Family Doctors
Fox Presidential Election Graphic
We have always been at war
Super Bowl social media (The football helmet pie charts sum to more than 100%).
Autralian Census
Start-ups
Number of people who have ever lived (the time-scale could be better)
Gizmodo's Collection of nonsensical visualizations
World Hunger

Galleries of examples

Here are a few sites that talk about good and bad visualizations of data.