Other sites also offer great variaty of datasets free
Yahoo! Labs – Collection of datasets related to language, social, marketing and more. They’re well organized and most of them are hundreds of megabytes in size.
Awesome Publid Datasets – This is a Github repository that’s a list of publicly available datasets organized by category.
Gapminder – Hundreds of datasets on world health, economics, population, etc. All of it is viewable online within Google Docs, and downloadable as spreadsheets.
The Info – Mostly large datasets. The site is losing momentum, but the data available here is still gold.
Datamob – List of public datasets.
Numbrary – Lists of datasets.
Kaggle – Kaggle is a site that hosts data mining competitions. Each competition provides a data set that’s free for download.
SNAP – Stanford’s Large Network Dataset Collection. This list has several datasets related to social networking. Lots of fun in here!
More available datasets at: https://r-dir.com/reference/datasets.html