The emergent Web 2.0 is characterized in particular by the social uses of the Web to promote the formations of communities on the basis of Web technologies, as well as reliance upon communities of Web users to generate and organize content in a dynamic way. Social networking refers to sites of all types that are focused on helping network people together on the basis of common interests. Social networking sites typically involve individuals with some common interest presenting their own information and interests, and then allowing them to share resources and messages with others on the site. Social software is Web-based software that helps people collaborative and connect - instant messaging, chatting, discussion forums, blogs, virtual worlds, and the like. Social Bookmarking refers to allowing users to store, classify and annotate their own bookmarks—or favorite websites—for others to search and view, thereby helping people discover others with common interests, as well as providing a user-facilitated way for people to find their way through the Web's many sites. By extension this can also refer to Web sites that do the same for people's favorites in other areas - movies, wine, books, and so forth. See folksonomies as well.
THDL was founded from the beginning with the goal of functioning as a library that facilitated people coming together on the basis of common interests regarding knowledge about, by, and for the regions and communities of Tibet and Himalayas. Thus community formation and support is an intrinsic element of THDL. Sakai in particular is used to provide worksites for groups of people with shared interests in some subject to provide them discussion forums, Wikis, chat rooms, and more. In addition, our Community Roster is intended to help people find others with shared interests. We plan in the future to provide more social bookmarking features and to embrace the use of folksonomies