How do you like your data?
If you like your data international, free, and easy to find then the UK newpaper, The Guardian, has a site for you!
World Government Data draws from publicly available government databases like data.gov for the US and the cleverly named data.gov.uk. Now you can browse or cross-search government datasets from the UK, USA, Australia, New Zealand, with more sources added as they come available.
Even better, though it's Open Platform API, the Guardian gives you tools to build visualizations and create apps that use the Data Store. You can browse some of the apps that have been created so far here.