What is the Estonian ID card and how to use it securely? How many cards have been issued? How to use the card with a computer?
Learn more: ID card whitepapers

Is anyone already using the ID card and digital signature in their everyday business processes? How do they benefit from it?

How does the digital signature work in Estonia? How can I give and verify it? Is it legally valid?
OpenXAdES.org : universal digital signature concept and software

How can I add ID card support to new or existing software? Can I use it with standard software? What information is inside the chip and how is it used?