The following manufacturers produce figures, buildings or accessories variously described as 10mm, 12mm, N-Gauge, 1/200th, 1/160th.
The Mad Axeman's 10mm Directory has many useful reviews and comments on 10mm WW2 ranges
10mmWorld.com also has a lot of useful information
The Small Scale Models FAQ has a wealth of useful information on kits and modelling, mainly dealing with 1/144th scale