Hey,
Each gadget or extension has it's own strong points, so your choice depends
on what you want to do exactly. However, AFAIK the Maps extension is by far
the most versatile and is used on more wikis then any of the other
extensions or gadgets.
http://www.mediawiki.org/wiki/Extension:Maps
Cheers
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Jeroen De Dauw
http://www.bn2vs.com
Don't panic. Don't be evil.
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