Google launched My Maps, a new feature in Google Maps that lets you mark some places on the map and annotate them. Essentially, it's an easy way to create a KML file from Google Maps (until now, the feature was available in Google Earth). To create a map:
* Select one or more places from the map.
* Draw lines and polygons to highlight paths and areas.
* Add descriptions by typing HTML code or using a rich text editor.
* More in this user guide.
Each map will have its own permalink (like this map of Googleplex) and can be exported as KML to see it in Google Earth. Google wants to create a big directory of maps, so if you decide to make your map public, anyone can find it in the search results. The alternative is to make it unlisted, which means the address won't be included in search results, but it will be accessible to anyone who knows it (much like in Picasa Web).

You can find maps created by other people if you search for a local business and click on "see user-created content" at the bottom of the search results. This acts as a search engine for KML files available on the web, so you'll find a lot of KML files from bbs.keyhole.com (Google Earth Community), where you could host your KMLs and get some feedback.
This new feature (available for a long time in Windows Live Maps or in some Google Maps mashups) is also a good way to share more than one place with a single link. You can add placemarks manually or from the search results.
Labels: Google Maps
said on April 5, 2007 3:25 AM PDT:
Ahhh!!! This is just awesome. Exactly what I was looking for. I only hope Google comes up with more icons for the locations. I love it. Love it. Love it.
Chris said on April 5, 2007 4:55 AM PDT:
This is great new feature! I'll be using it. Extensively
Note: the Central Park Zoo is actually
here(not on the east side as shown in your screen shot)
Digiital said on April 5, 2007 6:06 AM PDT:
Awesome!! Big fan of Google. Hopefully google developers see this.
Ideas:
**How about allowing a group of people to edit a group map, something like wiki. Either public, or password protected.
Example: I'm in a photography group and would be great to create a public "map" with interesting places to take photos.
**Import KMLs.
**Simple way of search public maps/KMLs. (From google search such as filetype:kml, so something like MAP: Toronto)
I have a geographically organized database with several hundred entries. Importing is a vital feature. I'm not going to embrace My Maps until that's possible.
The other problem is that adding locations to one map at a time isn't sophisticated enough. If I'm record the location for a restaurant I would want it to appear on a Thai food map, a Vietnamese food map, a restaurant map and a general food map.
I have tried drawing a route with the line command, but have been unable to get it to print. Hopefully, Google will fix this in the future.
** Importing KMLs **
Google Maps can render some KMLs: just type the URL in the search box. So it won't be too difficult to add an important feature.
** How to find KMLs **
filetype:kml actually works in Google search, but it would be nice to have a link "view in Google Maps". Right now, if you have Google Earth and click on a link to a KML file, it will open in Google Earth.
** Wiki Maps **
That would be really nice. Until they add it, try
WikiMapia.
** Printing maps **
You can print screen the map and print the image from Paint or an image editor. Or save the KML and open it in
Google Earth.
Bill said on April 11, 2007 5:53 AM PDT:
I think a lot of companies just saw their value proposition disappear.
Death by Google strikes again!
pfarmb said on April 19, 2007 1:45 PM PDT:
I have over 150 pins set and would like to see them all on one map rather than paging through several pages. I this being worked on?
Great possibilities here.
Cha said on September 19, 2007 11:38 AM PDT:
This is awesome! Now to make it better.....add the capability to upload PHOTOS!
said on October 22, 2007 4:19 PM PDT:
Allowing labels to be displayed for the icons chosen would be nice.
Even better is to either roll-over them for display of a static display the user can control as a layer.
i think both the My Maps feature and the new terrain feature will be extremely useful tools for land surveyors...