EveryTrail is very intuitive to set up and use, and produces very nice Flash maps (above). However, it seemed to have problems reading the GPS metadata correctly in my photos, requiring me to manually locate each shot on the map — not a deal-breaker with 8 pictures, but this would prove tedious with a longer trip. If you have used EveryTrail yourself and have any tips, please do share them.
I hope to try some of the alternatives over the next few days; I'll post my experiences here when I do.
Do you geotag your photos? What online services do you use to display your trips?