Here are some useful links that help us everday....
Molecular Biology:
RNA secondary structure (algorithms, thermodynamics and databases)
Databases:
Entrez - search and retrival system by the NCBI
Mouse Work:
The whole mouse catalog (links to databases, labs and companies)
The Ensembl mouse genome server
The Transgenic/Mutationdatabase
The Jackson laboratory web page
Literature:
Fellowships and useful information for young scientists:
Nextwave - career development for scientists (hosted by the magazine Science)
Leisure:
MeierOnline - going out in Heidelberg
Heidelberg aktuell - Kulturprogramm; available only in German :-(