There are so many excellent explanations of Dyspraxia out there on the web
so here are the links to the best of them:

NHS DIRECT:DYSPRAXIA  
Plain speaking and to the point

BBC HEALTH:WHAT IS DYSPRAXIA  
What the media thinks

DYSPRAXIA NEWZEALAND:LIBERATING DYSPRAXIA WITH UNDERSTANDING  
You'll find a comprehensive, historical and indepth medical explanation if you click on the 'what is dyspraxia' button in the left hand column on their home page

MADELEINE PORTWOOD'S MANUAL  
Sections of Madeleine Portwood's manual 
"Developmental Dyspraxia - A Practical Guide for Parents and Professionals"

VERBAL DYSPRAXIA  
10 most asked questions about childen with Verbal Dyspraxia 
(Australian Dyspraxia Association Inc.)