I ran across this interesting tool today called Genome Projector. It’s a creative application that uses the Google Maps API to render visual genomic maps with a load of detailed information.
Using the zooming capabilities of the Google Maps API, you can zoom around the large images and even search for pinpoint positions as if looking for a street address.
With 320 bacteria genomes at your disposal, you can explore each one of them via 4 different maps: Circular Genome, Genome, Pathway and DNAwalk.
I recommend giving it a try, even if just to see how the Google API was implemented.