Mods

Where can I find the mods used in the PvP And PvE Servers? I wanted to help a friend, who is just starting, play the game but I want them to go in our own private server first to learn stuff, blow stuff up, test out things they prob couldn't right off the back in a survival mode server. I have a few of the mods myself already but I don't have all of the mods used here and was hoping to get a list of used mods, please :D

Thank you