Encuestame is a survey management system. It's integrated with the most popular social networks, including Facebook and Twitter.
Level2 CLT sets a base and common environment for a complete CLT suite. Some people knows this as CRM, others as MA (Marketing Automation), others as a campaign manager, etc. Level2 CLT attempts to be an all-in-one tool for these purposes.
A GNU/Linux multimedia distribution that is targeted at audio, video, and graphics producers.
An online interactive tutorial and free text assesments.