According to the literature, many large public libraries and university libraries in developed countries have embedded social tools such as blogs, Face book, Twitter, YouTube and Flicker in their portals. Some libraries also cooperate with other third-party software developers to develop library applications that integrate their core social functions with library-specific functions (such as resource retrieval, topic navigation and document request) by using the development interface of social tools, so as to help libraries better realize various services. At present, foreign libraries use these social tools to realize the functions of information release, resource service and construction, interaction and publicity.

1. Information release?

(1) Activity notice: It mainly includes the notice of various lectures, trainings, meetings and other activities held by the library.

(2) Resource change notice: new books, new resources.

(3) Service change notice: opening time, closing time and related changes.

(4) recruitment notice: recruitment information.

(5) Highlights: hot news in the library or school.

2. Resource service and construction

(1) resource introduction: mainly including the introduction of this library and all kinds of resources and services it has, as well as the instructions for use.

(2) Photos and videos: photos and videos of training lectures.

(3) Resource links: links to important reference resources such as library websites, famous blogs and resource navigation.

(4) Highly integrated resource access portal: readers can directly access and obtain the required information resources without visiting the library homepage. For example, the National Library of France uses Facebook to share the updated information of electronic images of ancient books, and allows viewers to read and comment on Facebook directly.

(5) Crowdsourcing resource construction: The Library of Congress selected more than 3,000 copyright-free photos and posted them in Flickr community for participants to classify, label and comment, which achieved good results in a short time; The collection of ancient books in the New York Public Library also uses crowdsourcing to convert more than 40,000 menu pictures into searchable texts. In the first fish identification survey initiated by the American Museum of Natural History on 201/kloc-0, more than 5,000 samples that were difficult to identify were posted on the Facebook of the museum. In less than 24 hours, 90% of the samples were solved by user identification.

3. Interaction and publicity

(1) Recommendations and comments: including book recommendations, book reviews, discussion on reading skills, film reviews, etc.

(2) Survey and selection: including reader satisfaction survey, information acquisition survey, various selections, etc.

(3) Reference: Answer readers' questions about library resources utilization and other services, and provide subject librarian services.

(4) Publicity of new resources: Many foreign libraries use Pinterest's powerful visual effects to display the covers of their new books, special books and related children's books.