Is Facebook really "open" to all?

Social interaction is important for everyone, and vital for the differently-abled and elderly. Social network applications are causing us to change our ways of communicating and working. We can now make friends all over the world, share ideas and knowledge, search for others´ opinions, and more. Facebook and Twitter are examples of these applications. However, these opportunities are usually meant for people who can walk, see, and talk without difficulty. In this paper we show how blind persons, using screen readers and voice synthesizers to access the Web, can interact with social network applications. Our case study focuses on Facebook, analyzing basic features, explaining electronic barriers and suggesting solutions.