Version 1.0 - Recommended
Imagine IC2 crops, with a breedling line like Forestry bees/trees but with the HarvestCraft crops.
Website: http://ae-mod.info
A Mod About energy, and matter and getting stuff done! Probably.
Website: http://www.minecraftforum.net/forums/mapping-and-modding/minecraft-mods/2119722-better-foliage
It makes your plant life a bit more verdant and fluffy by drawing some extra stuff on trees, grass blocks, cacti, lilypads. Also adds reeds and algae in water.
An awesome cosmetic mod that adds better ways to store books and more.
Binnie’s Mods is a suite of mods designed to expand the Forestry mod. It both extends the bee and tree breeding aspect by adding many new species with varied products, along with new features such as fully breedable flowers and genetic manipulation.
A collection of beautiful and exotic biomes!
This mod adds slopes and a custom variety of vanilla-inspired blocks to the game. The custom nature of these blocks allows players to cover them using most solid blocks in the game. Once covered, they look and act just like the block they're mimicking, but in entirely new shapes! For example, make some obsidian stairs that are resistant to explosions. Or, make glowstone take the shape of a pyramid top. With Carpenter's Blocks, building takes on new possibilities!
Chisel adds a huge variety of static blocks to the game. This mod will be very useful for people who like the construction aspect of Minecraft.
Website: http://www.minecraftforum.net/forums/mapping-and-modding/minecraft-mods/1279956-chickenbones-mods
A dependency for all of ChickenBones' mods.
Website: http://teamcofh.com
The dependency for all Team CoFH mods, with custom ore generation, flat bedrock, and much more!
Website: http://www.minecraftforum.net/forums/mapping-and-modding/minecraft-mods/1278956-custom-npcs
This mod adds a set of tools to create npcs with different roles/jobs and other functions. It gives Creative Players a way to liven up their world with fully Customizable NPCs.
Website: http://enderio.com
A mod developed by CrazyPants which adds compact liquid conduits, energy conduits and redstone conduits, power generation, machinery, remote area access (enderIO), transceivers and more.
Just a bunch of fairly useful things.
A simple Minecraft Forge mod that speeds up leaf decay after you cut down the wood in a tree. By default it will only take about five seconds before all leaves are gone.
Forestry deals with farming, renewable energy production as well as the breeding of trees, bees and butterflies in Minecraft.
Website: http://www.minecraftforge.net
Minecraft mod loader.
This is a collection of garden-related mods originally based on Modular Flower Pots.
This client mod allows you to easily manage your inventory, in both single player and multiplayer. It works out of the box, and will make you gain a massive amount of time!
Jabba (Just Another Better Barrel Attempt) is a storage mod aiming at making a better barrel than what is already out there. It introduces one block (the barrel itself), a set of upgrades and a dolly to move things around.
Website: http://journeymap.techbrew.net
JourneyMap is a client mod which maps your Minecraft world in real-time as you explore. You can view the live map in a web browser, on your iPad or Android Tablet, or in-game. It requires Forge.
Website: http://www.liteloader.com
Lightweight modloader for Minecraft.
Every get bored of mining all the time for resources? Want a new way of collecting them? Magical Crops gives you the ability to grow your own resources! Grow Diamonds, Coal, Emeralds or even Experience, Now go and create a vast farm for all your needs!
This contains shared code for Forge mods and is used by the Slime Knights. Descriptive book code and common inventories are found here.
This is one awesome automation add-on for Minecraft!
NEI is a successor to both Too Many Items and Recipe Book. It arose around the same time as Craft Guide when Alexandria and a few others on the IRC suggested that I merge both Too Many Items and Recipe Book to remove their greatest flaws, ironically too many items, or in the case of recipe book, too many recipies. Too Many Items was great, but the one thing it lacked was an easy way to search and sort your items. When you had a mod like Red Power coming along with 10000 items both TMI and Recipe Book were racking up the pages. Even if you don't want to use NEI for cheating in items, you will likely feel right at home with the Recipe component of the mod.
A massive agricultural expansion to Minecraft.
This mod provides low tech automation tools for common tasks. The tools will be upgradable as the player progresses.
Shaders mod for Minecraft with Sildur's shaders included.
Tinkers' Construct is a mod about putting tools together in a wide variety of ways, then modifying them until they turn into something else. The tools never disappear and can be named and changed to your heart's desire. Once you make them, they're yours forever. Any world generation included in the mod is more efficient, but not required to progress.
This mod allows you to chop down an entire tree (leaves and all) by harvesting one of its logs. Based on Terraria tree-cutting style.
Waila is an extension for NEI. It will show in the tooltip what mod an item is from. Since the tooltip contains the mod name, you can also easly parse items per mods.
WorldEdit in single player.