[en] Over the past few years our means of communication have changed rapidly due to the growth of the World Wide Web (WWW). The Web enables molecular biologists to immediately access databases, scan literature, find information about related research and researchers, and to trace cell cultures. Wet-lab biologists can uncover information about the protein of interest without having to become experts in sequence analysis. Here, we present a variety of tools; provide an overview of the state-of-the art in sequence analysis; and described some of the principles of the methods.