This web site exists for several years now. I always make an effort to keep it up to date and comprehensive, in particular the technical pages. This causes some work from time to time, and operating the site is not free, either. I never liked the idea of having online advertisements on these pages to get some compensation. All too often you get ads for unwanted content, and ads naturally tend to become intrusive and annoying.
With Flattr there is now a mature micro-payment service that allows readers to contribute to web sites with little effort and low overhead.
So if you like this web page and you think it contains helpful information, you can now click on the Flattr button to the left (below the menu) and make a small contribution to let me operate and maintain this web site.