John Owen has made Enriching Electronics Pages at vwlowen.co.uk. There are many Ham Radio projects too.
Amateur Radio and Calculators for Electronics
A highlight is the “Build A PICAXE Weather Station.” This is quite Exhaustive and Detailed.
Starting Electronics – a simple first project.
Here he teaches in simple tongue, The method and steps to towards the first project and that too, with the Sacred SG555 Timer.
Collection of calculators, ready-reckoners
Here is where he dazzles, He has developed very useful Calculators to make your Numbers Game a Piece of Cake.