Datasets (free) for practising data mining

I will use this page to consolidate datasets that are free to download. So that I do not have to waste time searching the internet for relevant datasets. These will be classified accordingly.

An awesome list curated here by Data Science Central website

Education Datasets (Free)

Academic Torrents (
LinkedUP – will help in collecting, sharing and have an open access to educational data sets also Datasets from DataHub
Datasets for data mining at R-bloggers website also this one.
The Programme for International Student Assessment (PISA)  and this one is a triennial international survey which aims to evaluate education systems worldwide by testing the skills and knowledge of 15-year-old students.
Quandl, Data360, National Center for Education Statistics, Pew Research Centre

R dataset

1. Miscellaneous dataset in CSV format

Webpages pointing to free datasets

page1, KDNuggets, UCI Machine Learning Repository, R and Data Mining, Machine Learning data set repository,