- science related
- Homepage of AEI, Numrel group
- Homepage of CCT, LSU
- Monitors of AEI clusters, AEI NumRel Portal
- Astrophysics Sector of SISSA
- Living Reviews Print / Electronic Journals gr-qc astro-ph Physical Review D ApJ ADS
- Homepage of the Cactus - Thornsuite Whisky, Lorene
- EVO
- computer related
- bugs I want to follow
- my E6646-page
- Debian
- Bug Pages of Packages and their release critical bugs
- my software page
- my Einstein@home results on gnork
- W3C-HTML-Validator, W3C-CSS-Validator
- misc
- Google: de/ com/ maps
- Translators English-German: Leo TU-Chemnitz
- CCC Berlin
- Heise News Telepolis
- Deutsche Bahn BVG
- city map Berlin
- Speiseplan der Mensa der Uni Potsdam
- my homepage . .