Windows Azure Marketplace Windows Azure Marketplace
Find a wide variety of data including demographic, environment, financial, retail and sports. Use this data in your Microsoft Office software, BI tools and your very own custom applications.
Infochimps
With thousands of public and proprietary downloadable data sets and APIs, the data marketplace is a resource for data scientists and developers to get their hands on some Big Data.
DataMarket
DataMarket's unique data portal - DataMarket.com - provides access to thousands of data sets holding hundreds of millions of facts and figures from a wide range of public and private data providers including the United Nations, the World Bank, Eurostat and the Economist Intelligence Unit. The portal allows all this data to be searched, visualized, compared and downloaded in a single place in a standard, unified manner.
Data.gov

Data.gov

Data.gov starts an exciting new chapter in its evolution to make government data more accessible and usable than ever before. The data catalog website that broke new grounds just two years ago, is once again redefining the Open Data experience.

Million Song Dataset

Million Song Dataset
The Million Song Dataset is a freely-available collection of audio features and metadata for a million contemporary popular music tracks.
Data store: World Government Data World Government Data
Governments around the globe are opening up their data vaults – allowing you to check out the numbers for yourself. This is the Guardian’s gateway to that information. Search for government data here from countries, cities and states around the world.
IMDB Data
This page describes various alternate ways to access The Internet Movie Database locally by holding copies of the data directly on your system.
NTSB Seal/Home. NTSB aviation accident database
The NTSB aviation accident database contains information from 1962 and later about civil aviation accidents and selectedincidentswithin the United States, its territories and possessions, and in international waters
Freebase-logo.png Freebase
Freebase is a large collaborative
knowledge base consisting of metadata composed mainly by its community members. It is an online collection of structured data harvested from many sources, including individual 'wiki' contributions.
Kaggle Kaggle
Kaggle is an arena where you can match your data science skills against a global cadre of experts in statistics, mathematics, and machine learning
Factual
Factual, launched in October 2009, is an aggregator and provider of open data, which it provides access to through web service APIs and reusable, customisable web applications.
odata The Open Data Protocol
OData is a Web protocol for querying and updating data that provides a way to unlock your data and free it from silos that exist in applications today. OData does this by applying and building upon Web technologies such as
HTTP, Atom Publishing Protocol (AtomPub) and JSON to provide access to information from a variety of applications, services, and stores.
OurAirports Home Our Airports
a
CSV-formatted data dump of all airports, countries, and regions, which is updated every night. You can download these files and open them with almost any spreadsheet program or import them into your own database.

Importing Weather Data from Wunderground

Importing Weather Data from Wunderground
The
Wunderground.com website offers several creative interfaces to current and historic weather information. One of the more interesting features is the URL-based interface to personal weather stations.
To be updated later today …