demos

Aristides Gomez Ramírez's Portfolio- I  enjoyed how he presented his charater design. Not only did you get to see the character alone in a walk cycle but you also get to see them in their environment through a short scene.  But, it was a bit long and didnt seem to have a strong beginning middle and end.  I liked how he included a key (program used, title, date made) for each part.  He also included contact information in the demo.  
http://www.behance.net/gallery/Demo-Reel-2009/346811

Barbara Domuschieva's Portfolio- She gives character development, characters in action, a beginning middle and end, and gives contact information and a key for the parts of the reel. Her page has the reel, stills, a link to her portfolio, and links to other work. 
http://www.behance.net/gallery/Animation-Demo-Reel/1957119 

Fei Gao's - I really liked how she put her demo together it showed a range of work but still had a beginning, middle, and end. The music wasnt distracting and the reel wasnt too long. 
http://www.behance.net/gallery/Demo-Reel-2011/1348765