Over arousal

http://abrionline.org/article.php?id=249 - Karen London article

Use a lower value reinforcer
Teach tug - 'off' and 'get it'
Teach 'finish' (interactions) and 'what dog?'

Loose lead walking

http://ahimsadogtraining.com/blog/2008/10/12/silky-leash/

http://ahimsadogtraining.com/blog/leash-walking/

A different method that starts with the dog off lead.

http://www.youtube.com/watch?v=DayHrhoSJZc&feature=relmfu 
 
http://www.youtube.com/watch?v=GJXC8Mo_ASQ&feature=relmfu

Puppy development

http://www.thepuppyplan.com/ - New plan developed by KC and Dogs Trust
http://breedingbetterdogs.com/pdfFiles/articles/early_neurological_stimulation_en.pdf - Battaglia on Early Neurological Stimulation
Evidence it works?

http://www.journalvetbehavior.com/article/S1558-7878(09)00155-5/abstract