- Collection development (Libraries),
- Library information networks,
- Library users,
- Social media
Libraries are offering more services through social media Web sites like Twitter and Facebook, and this presence online is encouraging more conversation between libraries and patrons, including collection development requests. A review of popular Twitter and Facebook library profiles reveals the most successful accounts to be those where the library actively engages its users online. Through these media, libraries can have direct, immediate conversations with patrons that result in patron-initiated material requests.