Twitter is a useful tool for an ECE teacher to communicate with parents of students. This is an easy way for parents to be informed on what is going on in their child's school and classroom.

This is a tool that allows users to manage their twitter accounts and tweets from other users on one program on their personal computer. This tool can be combined with other social networking sites. Teachers could use tweet deck to send out tweets and information to their students or parents of their students about what is going on in their classroom

This is a good description of how twitter can be useful in a classroom.

This is a social platform site that allows teachers to share files and other information with their students and parents. This site is similar to Twitter, but more focused on catering to teachers and its use in the classroom.