science club
Blog, graphics, computer, abacus and periodic table

avr microcontrollers and DIY electronics projects and tutorials
In our electronics section you can find tutorials on how to build your own avr programmer, a digital DC power supply, a tiny web server, an ethernet weather station, usb slide show presenter and lots more.

toolbox: utilities and calculators
Take a look at the tuxgraphics free online toolbox with utilities and calculators.

tuxtalk - everything penguin

photos

e-cards

family history
(there is a German version here)