Gliffy, the online Visio killer
Two guys with some time on their hands have created a tool that might just become a Visio-killer. Gliffy is a free diagramming tool that works entirely in your browser.
Like other online applications, it has inherent advantages over traditional software. Collaboration is easier, for one. Although Gliffy doesn't offer real-time group editing like Writely, Google Spreadsheets, or SynchroEdit, it makes it easy for multiple users to work on a diagram in turns. Gliffy does track all changes made to a document. It's kind of like a wiki in that way.
Gliffy also makes it easy to publish a diagram you create to the Web. Gliffy keeps a live JPG of each file on its servers, so if a site or blog links to that image, it will always show the most current version.
Gliffy is still early beta. While I found the application stable, it doesn't have a feature set to make it competitive with Visio. I found it hard to align objects, for example. Also, the library of objects (flowchart shapes, networking equipment, furniture items, etc.) is limited, and users can't add their own items. And there are no dimensioning lines, so it can't make accurate floorplans.
But this is a very impressive start. Gliffy has enough functionality today to serve as a good sketching tool for creating simple flowcharts, network diagrams, or user interface mockups. And you can't beat the price.
See also mxGraph and AjaxSketch.
Found on: BuzzShout.
Rafe Needleman writes about start-ups, new technologies, and Web 2.0 products, as editor of CNET's Webware. E-mail Rafe. 
It is
http://www.drawAnywhere.com
drawAnywhere.com's user interface much simplier..
It has all things to make flowcharts, and can export flowcharts and digrams as pdf file too.