Once in a while, we may need to create a diagram and publish it to our website. Diagram.ly can be a tool for this purpose. You can access this drawing tool at www.diagram.ly, and it is free.  You will see all drawing tool icons on the left side of the screen and the drawing canvas on the right. Using this free online drawing application is similar to any drawing programs like Paint.net, Dia diagram or Visio.

Below is a demo video clip.

The following image is the PNG image of the diagram created by the demo.

flowchart demo

Links

• Graphics for your web pages: free clip art images on openclipart.org

This question comes up every time I try to save an image. So I decided to read about this topic from writing on the Internet.

I got on google and found a few good articles about the answer for this question. The answer is “it depends”. The rule of thumb is as follows:

If it is a photo with gradient, then use JPG. If it is an image with line arts and blocks of solid colors, then use PNG. If you want viewers of IE6 to see the image, then use JPG.

One excellent article is by Liraz Siri, on turnkeylinux.org, PNG vs JPG: 6 simple lessons you can learn from our mistakes.

Another good article is on howtogeek.com: “What’s the Difference Between JPG, PNG, and GIF?” This article discusses about GIF for people want to know more about GIF.