Looking for a simple way to create bar, pie, and line charts online? How about Venn Diagrams and interactive maps? Chartle.net can make them all.
Start by heading over to Chartle.net, then hit up the Create link and get to graphing. (No registration required.) Once you've launched the webapp, you can choose between bar, pie, line, plots and diagrams, static maps, interactive maps, and dynamic charts. (The tool's "Fun" tab also offers organisation and gauge charts, as well as something the site calls a "static Google-o-meter." )
Next fill in the relevant details like title, chart size, and position (right, left, top, bottom, label, none), and choose whether you want your chart to have a 3D effect. For a detailed walkthrough of how you can use the site to make nice graphs and charts from your data, make sure to take a look at the video demo.
Once you're satisfied with your creation, click the "publish, share or embed" button.