Basic Steps to add a Google Map to your wiki page involves creating your google map, creating the IFRAME code to embed it, and then inserting that IFRAME code into the "Other Widget"

1. You'll need a Google Account to create and save a map.
2. Go to Google My Map and create/save your map.
3. Create the IFRAME code necessary to display your map. If you don't know how to write your own IFRAME code you can use the free "Google Map Embedder" too to create the code for you. The Embedder tool can be found at: http://www.dr2ooo.com/tools/maps/ and there's a quick "how to" written by Noel Jenkins located on their site if you need more specific info on how to use the tool.
4. Open your wiki page and click the Widget tool button. Then choose the "Other Widget" option.
5. When the option window opens, paste into it your IFRAME code that you wrote or that you created using the Embedder tool.
6. Close the widget and save the changes to your wiki page. Your map will now show up on the wiki page.

The map below showing the stadium where the St Louis Cardinals play ball, is pictured below. I used the Google Map Embedder tool to generate my IFRAME code and it took about 5 minutes for me to insert this map into the wiki page.


Jump to the live map if you want more options.

Hope this helps.