Advantages of organizing websites

There are a lot of advantages to using a "Delicious" account or "Google reader" account to store and organize information and websites.  Teachers can have websites already available for students to have access too and never have to consider the reliability of them because they will already be checked and approved for their classes.  Educators can have their students set up an account for their class and upon doing research have the names of the websites or lists of the specific websites students need to go to.  Teachers and students can get valuable information, ideas and websites from other members.  Members can "tag" their information with a certain title to make searching easier.  I see this as a tool I will use more of in the future for my classes and students.