Social networks are great. The opportunities to make contact with others who share your interests, find chat networks for information and particularly for those who are shut-ins. That is one way I see the benefit for libraries. Those who are unable to make it to the library physically could connect up on-line for book information, even book clubs. The main problem is that many of our shut-ins are elderly and unfamiliar with internet use...but there are many others who could make use of a good library site.