Permissions:
Buildcraft by SpaceToad, Krapht and Sir Sengir
http://www.mod-buildcraft.com/
http://www.minecraftforum.net/topic/682920-
- I did not make any Buildcraft source modifications.
Industrialcraft 2 by Alblaka and The IC2 Team
Permission: http://forum.industrial-craft.net/index.php?page=Thread&threadID=7994
http://www.industrial-craft.net/
http://www.minecraftforum.net/topic/1673844-
Rei's Minimap by ReiFNSK
Minecraftforum: "It is allowed to include this mini-map in your mod pack basically.
Please make a link to this topic and display the name of the ReiFNSK however."
http://www.minecraftforum.net/topic/482147-
IC2 Advanced Solarpanels by SeNtiMel
IC2 Forum: "For all those who want to use my addons in their mods pack, I give permission to use all my addons. You don't need pm me about it !"
http://forum.industrial-craft.net/index.php?page=Thread&threadID=3291
IC2 Compactsolars
Licensed under the GPL - I have not made IC2:CS modifications
http://forum.industrial-craft.net/?page=Thread&threadID=4827
IC2 Gravisuite by SeNtiMel
IC2 Forum: "For all those who want to use my addons in their mods pack, I give permission to use all my addons. You don't need pm me about it !"
http://forum.industrial-craft.net/index.php?page=Thread&threadID=6915
Obsidiplates by Myrathi
FTB Mod permission forum: "As an extension to the permissions already given to the FTB team (via PM to Slowpoke),
any Mod Pack provided by the FTB Launcher may contain any or all of my following mods, so long as credit is given and links back to the mods' threads are provided"
http://bit.ly/ObsidiPlates
Iron Chest mod
Licensed under the GPL - no modifications made
http://www.minecraftforum.net/topic/981855-
Netherores by Power Crystals
Minecraft forum: " You are free to include any of my mods in any modpacks or server-specific packs without needing to ask permission (but it'd be nice to hear if you do!), provided something either in the download or on your site lists me as the creator."
http://www.minecraftforum.net/topic/1629898-
Railcraft by CovertJaguar
Permission granted through PM
Screenshot: https://dl.dropboxusercontent.com/u/43514962/railcraft%20permission.png
http://www.minecraftforum.net/topic/701990-
Thermalexpansion by KingLemmingCoFH
License: http://thermalexpansion.wikispaces.com/License "Permission granted. This was made to be played, after all."
http://www.minecraftforum.net/topic/1297506-
StevesCarts by Vswe
"If you want to include Steve's Carts 2 alpha in a mod pack, public or private, you need to follow a few steps.
1. Give me credit for the mod.
2. Have permission from all mod authors whose mods are in the pack.
3. Don't earn money on the pack."
http://stevescarts2.wikispaces.com/
http://www.minecraftforum.net/topic/680276-
Enderstorage by Ecu & ChickenBones
Minecraft forum: "The Owners hereby give written consent to include EnderStorage in modpacks, provided the pack has written consent from the authors of all other mods included in it. "
http://www.minecraftforum.net/topic/1160665-
Invtweaks by jimeowan
Forum Thread: "Inventory Tweaks, being under the MIT License, is frequently used in modpacks. Feel free to redistribute it! My only request is to provide a link to either this thread or the mod's website."
http://www.minecraftforum.net/topic/323444-
Forestry by SirSengir
Forum Thread: "You are free to add Forestry to your modpack and redistribute it, as long as the modpack is strictly non-profit and none of the other mods are included against their license."
http://forestry.sengir.net
NEI by Chicken Bones
Forum Thread: "You are welcome to include any of my mods in modpacks as long as you provide credit. My name and a link to this page is fine."
http://www.minecraftforum.net/topic/909223-
Smart moving by Divisor
Permission granted though PM
Screenshot: https://dl.dropboxusercontent.com/u/43514962/Smart%20Moving%20permission.png
http://www.minecraftforum.net/topic/361430-
Pam's Harvestcraft by... Pam!(duh)
Forum Thread: "I hear by give permission to any non-profit mod pack to use any of my mods listed for Minecraft Version 1.4.6 or higher in their mod packs without needing written permission from myself as of January 28th, 2013. You may not claim my mods as your own and must credit myself and Rhodox of the Painterly Pack in your forum post and/or area of download links."
http://www.minecraftforum.net/topic/402069-
Applied Energistics by AlgorithmX2
http://ae-mod.info/Frequently-Asked-Questions/ - "Yes, I've officially opened up all my restrictions on this. If someone asks you if you have permission, send them here"
http://www.minecraftforum.net/topic/1625015-
Buildcraft by SpaceToad, Krapht and Sir Sengir
http://www.mod-buildcraft.com/
http://www.minecraftforum.net/topic/682920-
- I did not make any Buildcraft source modifications.
Industrialcraft 2 by Alblaka and The IC2 Team
Permission: http://forum.industrial-craft.net/index.php?page=Thread&threadID=7994
http://www.industrial-craft.net/
http://www.minecraftforum.net/topic/1673844-
Rei's Minimap by ReiFNSK
Minecraftforum: "It is allowed to include this mini-map in your mod pack basically.
Please make a link to this topic and display the name of the ReiFNSK however."
http://www.minecraftforum.net/topic/482147-
IC2 Advanced Solarpanels by SeNtiMel
IC2 Forum: "For all those who want to use my addons in their mods pack, I give permission to use all my addons. You don't need pm me about it !"
http://forum.industrial-craft.net/index.php?page=Thread&threadID=3291
IC2 Compactsolars
Licensed under the GPL - I have not made IC2:CS modifications
http://forum.industrial-craft.net/?page=Thread&threadID=4827
IC2 Gravisuite by SeNtiMel
IC2 Forum: "For all those who want to use my addons in their mods pack, I give permission to use all my addons. You don't need pm me about it !"
http://forum.industrial-craft.net/index.php?page=Thread&threadID=6915
Obsidiplates by Myrathi
FTB Mod permission forum: "As an extension to the permissions already given to the FTB team (via PM to Slowpoke),
any Mod Pack provided by the FTB Launcher may contain any or all of my following mods, so long as credit is given and links back to the mods' threads are provided"
http://bit.ly/ObsidiPlates
Iron Chest mod
Licensed under the GPL - no modifications made
http://www.minecraftforum.net/topic/981855-
Netherores by Power Crystals
Minecraft forum: " You are free to include any of my mods in any modpacks or server-specific packs without needing to ask permission (but it'd be nice to hear if you do!), provided something either in the download or on your site lists me as the creator."
http://www.minecraftforum.net/topic/1629898-
Railcraft by CovertJaguar
Permission granted through PM
Screenshot: https://dl.dropboxusercontent.com/u/43514962/railcraft%20permission.png
http://www.minecraftforum.net/topic/701990-
Thermalexpansion by KingLemmingCoFH
License: http://thermalexpansion.wikispaces.com/License "Permission granted. This was made to be played, after all."
http://www.minecraftforum.net/topic/1297506-
StevesCarts by Vswe
"If you want to include Steve's Carts 2 alpha in a mod pack, public or private, you need to follow a few steps.
1. Give me credit for the mod.
2. Have permission from all mod authors whose mods are in the pack.
3. Don't earn money on the pack."
http://stevescarts2.wikispaces.com/
http://www.minecraftforum.net/topic/680276-
Enderstorage by Ecu & ChickenBones
Minecraft forum: "The Owners hereby give written consent to include EnderStorage in modpacks, provided the pack has written consent from the authors of all other mods included in it. "
http://www.minecraftforum.net/topic/1160665-
Invtweaks by jimeowan
Forum Thread: "Inventory Tweaks, being under the MIT License, is frequently used in modpacks. Feel free to redistribute it! My only request is to provide a link to either this thread or the mod's website."
http://www.minecraftforum.net/topic/323444-
Forestry by SirSengir
Forum Thread: "You are free to add Forestry to your modpack and redistribute it, as long as the modpack is strictly non-profit and none of the other mods are included against their license."
http://forestry.sengir.net
NEI by Chicken Bones
Forum Thread: "You are welcome to include any of my mods in modpacks as long as you provide credit. My name and a link to this page is fine."
http://www.minecraftforum.net/topic/909223-
Smart moving by Divisor
Permission granted though PM
Screenshot: https://dl.dropboxusercontent.com/u/43514962/Smart%20Moving%20permission.png
http://www.minecraftforum.net/topic/361430-
Pam's Harvestcraft by... Pam!(duh)
Forum Thread: "I hear by give permission to any non-profit mod pack to use any of my mods listed for Minecraft Version 1.4.6 or higher in their mod packs without needing written permission from myself as of January 28th, 2013. You may not claim my mods as your own and must credit myself and Rhodox of the Painterly Pack in your forum post and/or area of download links."
http://www.minecraftforum.net/topic/402069-
Applied Energistics by AlgorithmX2
http://ae-mod.info/Frequently-Asked-Questions/ - "Yes, I've officially opened up all my restrictions on this. If someone asks you if you have permission, send them here"
http://www.minecraftforum.net/topic/1625015-