Twitter is great for following people. kontaktmaschine aims to be good at finding and contacting them.
If you want to be found, publish your Twitter profile on kontaktmaschine along with topics you are interested in.
If you are interested in certain topics, use kontaktmaschine to find other people interested in them.
This is a beta version project by @jraedisch. I am thankful for any feedback, especially design-wise (as you can probably guess), and of course for every published profile.