Comparisons and advocacy

>>Ah, but it's pretty
Frog Teacher's demo sites might look 'pretty' but the mark-up is atrocious.
Not one of the demo sites (including their own website) passes w3c validation. This is just not acceptable in the modern era of web development. If they can't create a product that meets w3c standards (moodle does) then just imagine how shoddy the server side code is! As of today (2008/08/06) www.frogteacher.com fails w3c validation with 168 Errors! Moodle.org fails too, but only on anchors with un-escaped ampersands. Frog has lots of really bad mark-up errors (e.g. script tags without type attribute).
A default moodle installation will pass xhtml strict validation- Frog will not do this.
Also, Moodle can look really pretty with theme customisation.