Ingame Account Switcher by Elvm
Allows you to switch between accounts.
Ingame Server Switcher by canelex
Allows you to connect to another server directly from the current server.
Ingame UserName Changer by rakion99
A simple mod to change your ingame username.
IngameInfo by bspkrs
Want to know how much score you have without having to die? In need of real time information like weather, light level or your world size as you explore? Then this mod is for you!
clientside HUD opensource
Ingotarium Mod by TwiLordMC
Adds Ingotarium Ingots and blocks which can be used to make minerals like coal, iron and diamond.
IngotsAplenty by 33kingkiller
Too... Many... INGOTS!
InhabitedStructures
Adds new structures inhabited by villagers
Inheritance
The Inheritance/Eragon book series in Minecraft!
Innocence by s0baco
InputMethodBlocker by SkyStardust
To block input method gaming.