Electronics with EasyEDA

If your working on electronics, consider EasyEDA.com. This resource not only lets you simulate circuits ahead of time but also lets you order electronic parts and Printed Circuit Boards according to your designs. This can make DIY work much less daunting and the final product appear much more professional.

Post Edit: Since this post was put up, several people have suggested shunning web-based programs and looking into the personal computer based KiCAD instead.