Wouldn’t it be great if there was some magical institution which mapped out the developmental expression of mouse genes, and then made it freely available on the internet? And wouldn’t it be cool if all that data was compiled in an easily-searchable database that was being constantly updated with new genes and new experimental data?
Well, dream no more, because the folks at Department of Molecular Embryology at the Max-Planck Institute of Experimental Endocrinology have done just that by creating GenePaint. If there was a “You Might Be a BioDork If…” list, I think up there on the list would be “You are in awe of GenePaint and spend almost as much time there as on Wikipedia.” Really folks, this is cool. Check out this quick guide to GenePaint to see what all the fuss is about.
There are also mouse embryo maps and brain maps, as icing on the big nerdcake.

Sox2 Expression at E 14.5