DD-CSS is an open source project and a web application that facilitates data collection from social media and provides tools for data analysis. Although several nice repositories are publicly available, to the best of our knowledge there is no web application for collecting & analyzing social media data that does not require any programming skills.
We have many tools for social network analysis such as Gephi, Pajek, UCINET, etc. but what about the data collection? NodeXL, to our knowledge is the only one that can directly pull data from social media sites but it only works in MS Windows and Excel. Also there are many other kinds of analysis on social media than what is offered by these systems.