Wohooo.net - Create Your Own Online Radio Station
draw.io - Online diagramming application
Listen2MyRadio - Stop dreaming, start streaming. Free and premium Shoutcast and Icecast audio broadcasting.
LucidChart - LucidChart is the missing link in online productivity suites. LucidChart allows users to create, collaborate on, and publish attractive flowcharts and other diagrams from a web browser.
SOUNDS - Discover music with friends
PlantUML - PlantUML is an open-source tool that uses simple textual descriptions to draw UML diagrams.