BuildCraft: YES. BuildCraft is open-source, and can be freely integrated. Info: http://www.minecraftforum.net/topic/682920-164-buildcraft-421-blueprints-pipes-quarry-auto-crafting-building-engines/
IndustrialCraft: Any sort of files associated with this content (= the Download) is intended to be used for it's actual purpouse (playing IndustrialCraft²). Info:http://forum.industrial-craft.net/index.php?page=Thread&threadID=9843
bspkrs: They are allowed to be used in mod packs as long as I receive credit and the URL of this forum thread is provided.
http://www.minecraftforum.net/topic/1114612-164-bspkrs-mods-armorstatushud-directionhud-statuseffecthud/
Rei's Minimap: Made by ReiFNSK. http://www.minecraftforum.net/topic/482147-162-jul08-reis-minimap-v34-01/
Damage Indicators: Distribution unmodified versions of this mod in modpacks is allowed, as long as full credit goes to rich1051414, and is expressed in the credits with a link back to this forum post. http://www.minecraftforum.net/topic/1536685-172164forge-hit-splat-damage-indicators-v300beta-rpg-ui-and-damage-amount-mod/
Bibliocraft: By Joseph "Nuchez" Sinclair. www.bibliocraftmod.com
ChickenChunks: By chicken_bones. http://www.minecraftforum.net/topic/909223-164-smp-chickenbones-mods/
ChocoCraft: By Torojima. http://www.minecraftforum.net/topic/1119809-16x15xforge-torojimas-chococraft-303-happiness-distilled-into-avian-form/
ComputerCraft: I give permission to include ComputerCraft in any and all Minecraft mod packs, provided it is included unmodified. http://www.computercraft.info/download/
Dimensional Doors: By stevenrs11. Also, I am changing my stance on mod pack inclusions. I'm having trouble keeping up with all the requests, so I am hereby granting everyone and anyone permission to include my mod in any mod pack, public, private, anything. As long as you don't claim that it's your work, or try to sell it, permission granted.
Enchanting Plus: By mssodin28, GnRSlash, Qizzok, xkyouchoux. http://www.minecraftforum.net/topic/1528282-162152151sspsmp-enchanting-plus-v116v115v114/
Factorization: By neptunepink. http://www.minecraftforum.net/topic/1351802-164-factorization-0825/
Hats Mod: By iChun. You are allowed to include the mods in any mod pack, as long as you provide the necessary credit. My name and a link to this blog or the mod topic (if this blog is unavailable) is fine. http://ichun.us/support/mod-packs/
Galacticraft: By Micdoodle8. http://www.micdoodle8.com/oldsite/galacticraft/
Inventory Tweaks: By jimeowan. "Inventory Tweaks, being under the MIT License, is frequently used in modpacks. Feel free to redistribute it! http://www.minecraftforum.net/topic/323444-144145-inventory-tweaks-145-nov-16/
Ironchest: By cpw. his mod is now officially open source, licensed under the GPL version 3. Feel free to fork and have fun with it. I welcome pull requests of a useful nature. http://www.minecraftforum.net/topic/981855-15-and-up-forge-universalironchests-50-minecraft-15-update/. Source Code:https://github.com/cpw/ironchest
Natura: By mDiyo. This mod is covered under the Creative Commons 3.0 license. Modpacks are encouraged, feel free to do anything you like with it. I only ask that you enjoy it! http://www.minecraftforum.net/topic/1753754-16xnatura/
PowerCrystals: By skyboy026. Free for non-commercial use. You are free to include any of these 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/2016680-162164-powercrystals-mods-minefactoryreloaded-powercrystalscore-and-netherores-updated/
Project Bench: By _bau5. http://www.minecraftforum.net/topic/1550010-162sspsmp-project-bench-v180forge25000-downloads/
Project Red: By Mr_TJP. http://www.minecraftforum.net/topic/1885652-164forge-multipart-projectred-v42218-12312013/
RottenFleshToLeather: By AiryBreath. http://www.minecraftforum.net/topic/1990063-172-164-forge-yalsm-yet-another-leather-smelting-mod-dec-28/
SoulShards: By ShadwDrgn. ForgeIRC Soul Shards, and Recipe Remover are protected under the Creative Commons Attribution-NoDerivs 3.0 Unported (CC BY-ND 3.0) License which can be found here: http://creativecommo...s/by-nc-nd/3.0/
Tinker`s Construct: By mDiyo. This mod is covered under the Creative Commons 3.0 license. Modpacks are encouraged, feel free to do anything you like with it. I only ask that you enjoy it! http://www.minecraftforum.net/topic/1659892-164tinkers-construct/
TheWarpMod: By pjlasl. http://www.minecraftforum.net/topic/1952158-forge162164v106sspsmplan-the-warp-mod/
Toolbelts: By senpaisubaraki. http://www.minecraftforum.net/topic/2012366-164162-aesthetic-smpssp-toolbelt-show-off-your-items/
IndustrialCraft: Any sort of files associated with this content (= the Download) is intended to be used for it's actual purpouse (playing IndustrialCraft²). Info:http://forum.industrial-craft.net/index.php?page=Thread&threadID=9843
bspkrs: They are allowed to be used in mod packs as long as I receive credit and the URL of this forum thread is provided.
http://www.minecraftforum.net/topic/1114612-164-bspkrs-mods-armorstatushud-directionhud-statuseffecthud/
Rei's Minimap: Made by ReiFNSK. http://www.minecraftforum.net/topic/482147-162-jul08-reis-minimap-v34-01/
Damage Indicators: Distribution unmodified versions of this mod in modpacks is allowed, as long as full credit goes to rich1051414, and is expressed in the credits with a link back to this forum post. http://www.minecraftforum.net/topic/1536685-172164forge-hit-splat-damage-indicators-v300beta-rpg-ui-and-damage-amount-mod/
Bibliocraft: By Joseph "Nuchez" Sinclair. www.bibliocraftmod.com
ChickenChunks: By chicken_bones. http://www.minecraftforum.net/topic/909223-164-smp-chickenbones-mods/
ChocoCraft: By Torojima. http://www.minecraftforum.net/topic/1119809-16x15xforge-torojimas-chococraft-303-happiness-distilled-into-avian-form/
ComputerCraft: I give permission to include ComputerCraft in any and all Minecraft mod packs, provided it is included unmodified. http://www.computercraft.info/download/
Dimensional Doors: By stevenrs11. Also, I am changing my stance on mod pack inclusions. I'm having trouble keeping up with all the requests, so I am hereby granting everyone and anyone permission to include my mod in any mod pack, public, private, anything. As long as you don't claim that it's your work, or try to sell it, permission granted.
Enchanting Plus: By mssodin28, GnRSlash, Qizzok, xkyouchoux. http://www.minecraftforum.net/topic/1528282-162152151sspsmp-enchanting-plus-v116v115v114/
Factorization: By neptunepink. http://www.minecraftforum.net/topic/1351802-164-factorization-0825/
Hats Mod: By iChun. You are allowed to include the mods in any mod pack, as long as you provide the necessary credit. My name and a link to this blog or the mod topic (if this blog is unavailable) is fine. http://ichun.us/support/mod-packs/
Galacticraft: By Micdoodle8. http://www.micdoodle8.com/oldsite/galacticraft/
Inventory Tweaks: By jimeowan. "Inventory Tweaks, being under the MIT License, is frequently used in modpacks. Feel free to redistribute it! http://www.minecraftforum.net/topic/323444-144145-inventory-tweaks-145-nov-16/
Ironchest: By cpw. his mod is now officially open source, licensed under the GPL version 3. Feel free to fork and have fun with it. I welcome pull requests of a useful nature. http://www.minecraftforum.net/topic/981855-15-and-up-forge-universalironchests-50-minecraft-15-update/. Source Code:https://github.com/cpw/ironchest
Natura: By mDiyo. This mod is covered under the Creative Commons 3.0 license. Modpacks are encouraged, feel free to do anything you like with it. I only ask that you enjoy it! http://www.minecraftforum.net/topic/1753754-16xnatura/
PowerCrystals: By skyboy026. Free for non-commercial use. You are free to include any of these 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/2016680-162164-powercrystals-mods-minefactoryreloaded-powercrystalscore-and-netherores-updated/
Project Bench: By _bau5. http://www.minecraftforum.net/topic/1550010-162sspsmp-project-bench-v180forge25000-downloads/
Project Red: By Mr_TJP. http://www.minecraftforum.net/topic/1885652-164forge-multipart-projectred-v42218-12312013/
RottenFleshToLeather: By AiryBreath. http://www.minecraftforum.net/topic/1990063-172-164-forge-yalsm-yet-another-leather-smelting-mod-dec-28/
SoulShards: By ShadwDrgn. ForgeIRC Soul Shards, and Recipe Remover are protected under the Creative Commons Attribution-NoDerivs 3.0 Unported (CC BY-ND 3.0) License which can be found here: http://creativecommo...s/by-nc-nd/3.0/
Tinker`s Construct: By mDiyo. This mod is covered under the Creative Commons 3.0 license. Modpacks are encouraged, feel free to do anything you like with it. I only ask that you enjoy it! http://www.minecraftforum.net/topic/1659892-164tinkers-construct/
TheWarpMod: By pjlasl. http://www.minecraftforum.net/topic/1952158-forge162164v106sspsmplan-the-warp-mod/
Toolbelts: By senpaisubaraki. http://www.minecraftforum.net/topic/2012366-164162-aesthetic-smpssp-toolbelt-show-off-your-items/