L7 signature source

As everyone know, ROS is able to identify traffic (mark and shape) by using L7 protocol BUT we need to rely on external source (like wiki) for application signature like skype and so on.

Sometime, it is difficult to find those signatures or cannot find at all for new application like P2P,…

Is there other way to simplify it? Some advises would be appreciated!!

i think this is the central place for all protocols that can be used with the l7 filter:
http://protocolinfo.org/wiki/Main_Page

If you know of any other resources, post them here, or add to the wiki.