Virtual Tabletop Gaming Maps

[Elocin]

I should have probably posted this under Talking the Talk but I wanted more people to see it and hopefully help me out on this. I am starting my first ever PbP game as a DM and I need help in the mapping department. I know over the years of surfing the net for gaming stuff I have run across a few mapping software programs that would be very cool for this. I need some help in finding them again or some suggestions by current PbP DM's on how they present the maps to the players. I would love something that looks like Dunjini but small enough to upload to a thread.

Any thoughts would be much appreciated.

tia