Here is a list of player websites I have used to help aid me in this quest, some of them are very old and worth a look. I have included all host locations and marked the ones which no longer produce any files in the WayBack machine as dead. Those which are semi dead have a few files but you might have to dig for them. Maybe if we get a real time machine we can go back and explore the dead ones.
Tibia's first guild website
Sites from Alpha 3
The Church of Sauron (semi dead)
Sites from Beta 4
Assassins (no guild site found)
Sites from Beta 5
Advengers of Carlin (AoC)(mob) (no guild site found)
Sites from Beta 6