Grapholite is an easy-to-use and still comprehensive online and desktop solution for designing professional-looking flowcharts, organizational charts, mind maps, Venn charts, database structures, web-site structures, etc. that can be used online and offline, in and out of browser; created diagrams can be stored locally and on the server.
Lovely Charts is an online diagramming application that allows you to create professional looking diagrams, such as flowcharts, sitemaps, organisation charts, wireframes, and many more... For free.
"Diagramly is a free online diagram drawing application. You can use it to create UML, entity relationship, org charts, BPMN and BPM , database schema and networks. Also possible are telecommunication network, workflow, flowcharts, maps overlays and GIS, electronic circuit and social network diagrams. It's like a mini version of Visio in your browser.
You can export your diagram in our raw XML format, PNG or JPG, or as SVG. When reloading you can load back up the XML you saved previously, or import Visio. vdx.
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WikiMindMap is a tool to browse easily and efficiently in Wiki content, inspired by the mindmap technique. Wiki pages in large public wiki's, such as wikipedia, have become rich and complex documents. Thus, it is not always straight forward to find the information you are really looking for. This tool aims to support users to get a good structured and easy understandable overview of the topic you are looking for".