Ariadne's thread: biomedical gateways to not get lost in the Internet labyrinth

The more the Internet grows, the more a researcher has to cope with the so called ''information overload'', or ''data deluge''. Reliability, updating, authoritativeness of a Web site ought to be a requirement, all the more reason for the biomedical field. During the past years libraries and information specialists have been developing projects, such as gateways and virtual reference desks, aimed at supplying trustworthy health information in Web sites. Purpose of this contribution is to present these tools, in order to improve one's search skills.