Speculum Resources UK

Here's a good article about speculums in the UK (it's interesting how the speculums in the UK are completely different):

http://blog.medical-supermarket.com/2012/08/22/the-top-4-most-popular-vaginal-speculums-bought-by-gps-in-the-uk/

This page from Gynesol has some good information on different speculum and what they are used for:

http://www.gynesol.com/prod_category_list.php?grp_id=1

As does the Gynex company page on speculum (I especially like their "full view" rainbow coated speculum as well as the new "Sullivan" speculum.

http://gynexcorporation.com/speculums.aspx