Web 2.0 Related Products with Ajax

Here I am introducing some nice Web 2.0 related products or tools.

1.
PikiPimp An Ajax image doctoring tool.
How to use : Drag the items onto the image, and then manage them with widgets and sliders.

Really a cool products.
Go to http://www.pikipimp.com/

2.
Online calculator that plots graphs.

The tool uses canvas, With calc5 you can plot 2d and 3d graphs, make symbolic calculations such as derivation, browse 2d graphs same way as you browse map in your favorite mapping service with zooming and panning.

Not only maps you can calculate simple, complex calculations and engineering calculations also.

Go to http://www.calc5.com/