Creately is a new web based design and collaboration tool that lets you create flowcharts and diagrams by yourself or as small group projects. It’s a nice supplement to Zoho and Google Apps, and if you don’t keep a design or page layout program on your computer but sometimes need to make a chart, Creately will probably do the trick.
It’s currently free for public charts (don’t put your sensitive data there!) and the paid accounts will be rolled out soon to beta users.
There’s also Lovely Charts available for free now at http://www.lovelycharts.com which does indeed make lovely charts.