Reenactment Club Union North Front is a great site by any and all standards. It has some great photos, including one of a KV-1 heavy tank being pulled up from a lake. The group actually represents both Russian and Finnish units.
The site itself is nicely done and easy to navigate. It also has some bit of information that might be interesting for groups who are trying to formulate a direction for their group. North Front's mission statement/concept is great, and is worth a read. This is something all reenacting groups should do.
Also take a look at the photos in the gallery portion of the site. There are shots I imagine you won't see in any US reenactment. Pretty awesome to behold.