Information technologies have facilitated traditional reference process and made it more effective.
Nowadays, most of library reference services are web-based. New version of the Web tilted Web 2.0.
Some Web tools are blogs, wikis, RSS feeds, social networks, podcasting, tagging, mashups and
Instant Massaging. These tools can be used in reference services in library 2.0. This article has
proposed a model for reference services in 2.0 world called RS 2.0 model. This model includes
direct and indirect reference services. Reference interview is done via Instant Massaging in RS 2.0.
Four types of wikis used in RS 2.0. They are Ready Reference Wiki, Library Instruction Wiki, Reference
Project Wiki and Collaborative Review Wiki. Refnews Blog, RefLibrarian Blog and RefLink Blog
are some proposal blogs for RS 2.0. Social networks, podcasting, RSS and tagging are used in this
model. In fact, RS 2.0 is a mashup.