Heinz have put together some useful planograms for symbol groups and independent retailers. The site looks at optimising the position of products. Heinz have divided the planograms into categories including, grocery, beans and pasta, soup and sauces. For more information visit http://www.growgrocery.com/planograms/independent/index.html
For advice on planograms on other market sectors see our earlier blog post at https://retailaccounting.wordpress.com/2012/05/15/planograms-how-do-you-know-if-they-are-working/
If anyone has any other sources then please share them with us.