The Williamson Labs Electronics Tutorials website has tutorials on a wide range of subjects, many of these tutorials include fun animated illustrations.

Circuits for the Hobbyist, hosted by Tony van Roon has a small number of excellent tutorials on topics such as the 555 timer, 741 op amp and resistor color code.

The Electronics Teacher website has tutorials ranked from beginner to advanced covering electronics components, construction techniques and microcontrollers.

The Electronics Hobbyist website has several articles on electronics concepts that are written in a fun tone and are enjoyable to read.

Wayne Storr's Electronics Tutorial website has tutorials covering a range of electronics components.

The BEAM Reference Library website contains articles and tutorials on BEAM robots which discusses how to make non-computerized robots.

Be Your Own Cabinet Maker is an article by William Jones that shows how to make your boxes from ABS plastic for your projects.