Hey, let's get you started! Here is a link to the decks I use.
http://aoe3.heavengames.com/downloads/showfile.php?fileid=3559
Instructions are probably in the folder or on the site but if not, you need to go to Documents -> My Games -> Age of Empires 3 -> Save game. You'll find all your home cities there.
What you need to do is replace the already existing xml files in this folder with the files you just downloaded. A buddy of mine made these decks so credits to him. There are decks for most of the common strategies and you can edit it to your preference, although most of the decks are for TAD.
With civs, lets start with Russia
Russia is a really good civ for map control. You get blockhouses for the same amount of wood as an outpost but you're able to train troops (and some artillery with a card) with them while also being able to house 5 pop. I like playing russia in 2 different ways - rushing or aging to 3 and raiding with opri. Russia gets 5 villagers and more food crates than normal. Ideally, split the starting villagers into 2-2-1 and gather three food crates. Send 4 to food and one to finish crates. Build a house soon after since you won't be able to train more villagers after the first batch otherwise.
I then send the wood tickle card and while aging, choose the 400 wood. I then build a block house next to a hunt and a mine and try to cover as many trees as possible (very important to control the map's resources with these buildings).
While aging, it's good to have some villagers on wood depending on what wood treasures you find. You should have a blockhouse ready before you reach age 2. Right after, build a market and research the food and wood upgrades. Market upgrades should always be completed as soon as possible since they always give an edge against your opponents. Then, send as many unit cards as possible, because it's always quantity over quality with Russia. You then harass his villagers until you're at an advantage economically and win.
With the Opri strategy, you still make the block house but this time you try cover one of the enemy's secondary herds. Send some villagers to gold while aging (ideally 3) and send 3 more after aging. Build a market after aging as well and send food and gold upgrades. Send the 700 gold card right after you age and try to find some gold treasures as well. The problem with this strategy is that it is really hard to recover if you get rushed unless you know what you're doing. It's best to always have a tp with this strategy and have the 11 musk card for fortress. This is a backup card and only send it if you get rushed, since this combined with minutement can repel attackers until you get set up. Else send 1000 wood and build 2 more town centers next to valuable resources. Then, all you need to do is build a stable or 2 and start training opris and harass his villagers. Ideally, you'd also want to send adv arsenal shipment after the 1000 wood shipment and boost Opri's siege attack.
I'll post strategies for the other civs soon.