Some of the above images are to be credited to:

The Official Star Trek Website.

James T. Fazar of the Maximum Defiant.

Danny Evenwel of Data's Domain.

The Captain (no website).

Adam Heinbuch (no website known).

Hobbes at the Federation Starship Datalink.

The TrekArt Homepage.

Adam at http://www.geocities.com/aiihle/new.