The Google map embed code that is provided in the Link feature of Google maps contains iframe tags. The iframe tag creates an inline frame that contains another document.
In terms of standards compliance, use of iframes is actually a rather hotly contested topic. Some bad things can happen with iframes including the illicit injection of code into a webpage. Additionally the iframe tag is invalid in both Strict Document Type Definitions (DTDs) and XHTML version 1.1.
The Tiny MCE text editor used in our OSU Drupal installation does not work with iframes.
There is a workable solution for embedding Google maps in OSU Drupal 6. It is not the most desirable solution, but it is available. To be able to follow this process, the content contributor must have permission to use the PHP code input format. Under default circumstances, this would be an administrator or advanced author role.
To embed a Google map, do the following:
<object id="map" type="text/html" data="insert your map source URL here&output=embed" style="width:450px;height:300px;">
<object id="map" type="text/html" data="http://maps.google.com/maps?f=q&source=s_q&hl=en&geocode=&q=Oregon+State+University&sll=37.822802,-115.532227&sspn=25.118232,39.506836&ie=UTF8&hq=Oregon+State+University&hnear=&ll=44.660839,-123.277588&spn=5.477444,9.876709&z=7&output=embed" style="width:450px;height:300px;">
A sample of an embedded map is provided below: