San Francisco's Open Data Release Toolkit offers detailed guidance on how departments can evaluate whether, and how, sensitive data sets should be made public.

Assumptions about government openness vary from country to country. Here are a few lessons a cross-national perspective can bring to the open data movement.

An explanation of open data, why it's important and how you can do it yourself.

The Sunlight Foundation recently gave cities a roadmap to launch open data frameworks or enrich existing ones.

Open data, open mind: Why you should share your company data with the world Keeping your corporate information safe from prying eyes could also mean missing out on some big opportunities.