Motherboards:
ASRock
Asus
Biostar
ECS
EPoX
GigaByte
HP
IBM
Intel
MSI
Notebooks:
Acer
Aquarius
Asus
Dell
DNS
HP
IBM
Lenovo
MSI
Packard Bell
Samsung
Sony
Boot keys
This website should will help people that want to load own computer from USB-disk or DVD, but they don't know, what way key to press after boot.