The Ultimate DIY Guide to Product Photography – Shopify.com.au – this has a fab little 3 minute video you should definitely watch!
Lighting Tips: How to shoot killer product photography at home – PetaPixel.com – this tutorial uses a more professional lighting system but the video is great to demonstrate the different light sources you can use on an object and how effective a bounce reflector (ie a piece of white cardboard) is. This particular video will also be very useful for anyone shooting glass products or any products you might want a dark background or reflection for.