This service is provided by http://top100.topsters.net
and you can make your list there with kinda cool manner. Basically you split your albums on 3 categories. The absolute TOP-10, Second tier classics and other favourites. And for the sake of being reasonable this should not be narrowed only to Finnish metal. And I also suggest that you signup to that website otherwise if you take too long your effort might go wasted. By doing quick signup you can save your favourites and edit them later etc.
After you are finished you can share your TOP-100 to your Facebook page or save it as an image. For our purpose it would be saving the image. Then you can use for instance imgur.com
to upload your picture and there you can get the appropriate bbcode to use in forums.
There is a forum thread in Metal From Finland where we start gathering these TOP-100 of our followers and it will extremely interesting to see what are your favourites. I will post mine as the first post on the thread. Let's make this a fun thing! CLICK HERE FOR THE FORUM THREAD