I am looking to create some examples with D3, and I need some free data.<p>For example: historical price of oil, weather in X city, etc.<p>Is there any website with tons of free data?
Here's a good spot if your looking for some US Healthcare data:<p><a href="http://www.cms.gov/Research-Statistics-Data-and-Systems/" rel="nofollow">http://www.cms.gov/Research-Statistics-Data-and-Systems/</a>
For climate data, the U.S. NOAA is probably the go-to stop:<p><a href="http://www.ncdc.noaa.gov/cdo-web/" rel="nofollow">http://www.ncdc.noaa.gov/cdo-web/</a><p>I know lots of other data sources, but don't feel it's worth your while for me to list them...just because data exists somewhere doesn't mean that it's easy to understand and/or easy to publish...but I can point you to a couple of places where you can talk to others and get advice on it:<p>The OpenData StackExchange: <a href="http://opendata.stackexchange.com/" rel="nofollow">http://opendata.stackexchange.com/</a><p>And the datasets subreddit: <a href="http://reddit.com/r/datasets" rel="nofollow">http://reddit.com/r/datasets</a><p>And of course, there is the visualization subreddit: <a href="http://www.reddit.com/r/dataisbeautiful" rel="nofollow">http://www.reddit.com/r/dataisbeautiful</a>