Product Registration for Nikon, Sony & Panasonic Camcoders

https://support.nikon-asia.com/in/supportaccount.php?do=register

https://www.nikonschool.in/

https://www.sony.co.in/section/productregistration#

https://productregistration.sony.com/Home/Home

https://secure2.prodregister.com/panasonic/register2.aspx

All Camera Review

www.dpreview.com

http://www.kenrockwell.com/

http://www.digitalcamerareview.com/