Socrata – A variety of data sets with a social vibe.

Timetric – Timetric aggregates statistics from the the world’s leading sources of economic data

Google Public Data Explorer – Anyone can upload data to Google’s newly launched search service.

Infochimps – Find every dataset in the world. Upload datasets and point to others across the internet. Datasets are easily browsed and the metadata is contributed by users.

Datamarket – UN, World Bank, Eurostat, Gapminder and others all contribute to 13,000 dataests (both paid and free).

Data.Gov – American government data

Data.Gov.Uk – UK government data

Get The Data – A forum of data geeks helping you with your data queries.

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