Letter from the Editor-in-Chief.

It was in the mid-nineties when a senior colleague of mine, Dr. Bojan Biocina, introduced me to something called "OpenHeart-L" on The Heart Surgery Forum website. Suddenly, a whole new world appeared in front of me! The possibility to communicate with colleagues from all around the globe was amazing. And not only that-one could ask anything, and there was always someone who had an answer, gave a piece of advice…what to do, what to avoid...it was magic! The person responsible for this whole idea of sharing information and interactive communication was Mark Levinson. At that time I was more a lurker than a poster, eagerly waiting for discussions to develop and learning from other people's posts.