[How to make the best use of the Internet].

Presently, searching for genetic information successfully requires using the internet. Because the internet world has different common sense than the publication world, those who are going to use the internet should know its characteristics well. First, because there is an overwhelming number of web sites that continue to change, proper techniques for making an efficient search for valuable information are necessary. Second, the contents of web sites need validation. Third, possible harms that can come with the internet should be avoided beforehand, and so on. Recent rapid progress in information technology will soon bring the internet to every field of medical practice and the above-mentioned know-how will become minimum requirements for every clinician.