I visited a couple of homepages linked at www.mensa.de. Three things I wanted to note:
1. Facebook has made self-presentation and thought presentation more shallow. By visiting a Facebook profile you get a less authentic impression of the person than by visiting his/her homepage. The homepage has individual design and individual contents instead of being just a form.
2. Most homepages linked at www.mensa.de are of commercial nature. Freelancers and entrepreneurs want to advertise for themselves. Only a small part of the homepages is genuinely personal.
3. It is astounding that several people who studied physics (and graduated) ended up in rather primitive IT-related jobs such as support or sales. That is really a waste of talent.