What is a good way to share a GeoDatabase over the internet?

FTP (filezilla will transfer 10GB in 2hours on a 50mb broadband connection)

File geodatabases: compressing vs. compacting

Compressing makes it READ ONLY.

so you do not have to uncompress it each time you access it; ArcGIS and ArcReader read it directly.

but you must uncompress it to EDIT the geodatabase

Compacting tidies up storage of records in files by reordering them and eliminating free space. If you frequently add and delete data in a file or personal geodatabase, you should compact your geodatabase on a monthly basis

http://resources.arcgis.com/en/help/main/10.1/index.html#//018s0000000r000000