First thing you do is sell all your troops on the purchases screen.
Then you change your tax rate to 34%, and set spy production to 100%.
The more often you sell spies as you go, the better.

Turn 1) build 5 industry
Turn 2) build 5 industry
Turn 3) build 5 industry
Turn 4) build 5 industry
Turn 5) build 5 industry
Turn 6 - 8) Build Construction Sites
Turn 9) build 5 industry
Turn 10) build 5 industry
Turn 11) build 5 industry
Turn 12 - 17) Build Construction Sites
Turn 18) build 7 industry
Turn 19 - 24) build construction sites
Turn 25 -28) build 32 industry
Turn 29 - 34) build construction sites
Turn 35) explore - after this point your strategy will vary somewhat from mine because you will not get the same amount of acres exploring as I did. If you don't have enough to build what I am suggesting, then explore one more time. If you have 1 or 2 land left over after building everything, build construction sites with it before continuing with the strat.
Turn 36) build 10 industry
Turn 37) build 10 food
Turn 38) build construction site
Turn 39) build construction site
Turn 40) explore
Turn 41 -43) build 30 industry (again, this number maybe a tiny bit different depending on number of CS build with your extra acres)
Turn 44) build construction site
Turn 45) build construction site

don't forget to be selling spies the whole time. :)
Remember to sell spies as often as you can.
Turn 46) explore
Turn 47 -48) build industry
Turn 49-51) build construction sites
Turn 52) explore
Turn 53-54) build industry
Turn 55-61) build construction sites
Turn 62) explore
Turn 63) build industry
Turn 64) explore
Turn 65-66) build industry
Turn 67) explore
Turn 68-69) build industry
Turn 70) explore
Turn 71-73) build industry (got lucky on the exploration. Lots of land. :)
Turn 74-75) build construction sites (After turn 75, sell all spies and switch to 100% troop production)
Turn 76) explore
Turn 77-78) build industry
Turn 79) build construction sites
Turn 80) explore
Turn 81-82) build industry
Turn 83-90) build construction sites
Turn 91) explore
Turn 92) build industry
Turn 93-96) build construction sites
Turn 97) explore
Turn 98) build industry
Turn 99) build construction site

At turn 99 I like to stop and build up turns for the next day and shoot out of protection with a bang. :)
Turn 100-104) Build Construction Sites
Turn 105) explore
Turn 106) build industry
Turn 107) explore
Turn 108) build industry
Turn 109) explore
Turn 110-111) build 5 farms, rest industry
Turn 112-114) build construction sites
Turn 115) explore
Turn 116) build 5 farms, rest industry
Turn 117-119) build construction sites
Turn 120) explore
Turn 121) build industry
Turn 122-125) build construction sites
Turn 126) explore
Turn 127) build industry
Turn 128-130) build construction sites
Turn 131) explore
Turn 132) explore
Turn 133-134) build 5 farm, rest industry
Turn 135-139) build construction sites
Turn 140) explore
Turn 141) build industry
Turn 142) explore
Turn 143) explore
Turn 144-145) build 5 farm, rest industry
Turn 146-151) build construction sites

At the end of this day, whichever turn it may be, save one turn so that you can sell max amount of troops on the market.
If you have any extra acres from the day before, build up your construction sites so that they are divisible by 4. Example: 60 CS is good, because it is divisible by 4. If you have 58 CS, and 4 free acres of land, build 2 more CS, so that your new CS total is divisible by four.

Always make sure you grab your freebies at the top of the page. :)
For the rest of your turns, this is what you should do.

1) Explore (if you don't get enough land on your one explore turn to build your max potential, explore again)
2) build industry (if you are in the red for food, build 5 farms, and the rest industry)
3) build 4 construction sites

Repeat this until all your turns are done. You should be building about 25-27 buildings per turn now. If you don't have enough money to build the industry, build 4 construction sites. I am still in the green for cash, and it helped me make enough to build industry again when this happened to me.

If you hadn't already sold troops yesterday, do so today. Sell at $-2 of whatever the current price is, or even $-3 if you are really paranoid. Make sure you save a turn at the end to sell your troops if you haven't already done so.
Build 8 construction sites
explore
build 3 farm, rest industrial
explore
build industrial
explore
build industrial
explore
build 4 construction sites
explore
build 5 farm, rest industrial
explore
build industry
explore
build 4 construction sites
explore
build indy
explore
build 5 farm, rest industrial
explore
build industrial
explore
build 4 construction sites
explore
build industrial complexes
explore
explore
build industrial complexes
explore
build 5 farm, rest industrial
explore
explore
build industrial complexes
explore
build 10 farm, rest industrial complexes (hit a drought reducing food production. Needed more farms)

You may have to build more farms than me at times. Depeneds where you are at. Always try to stay in the green for food production. As well, we will start land grabbing on day 7, so please have your offensive slots filled by that time. Only make the offers at this point, don't accept them. Just leave them until the end of day 6. That is when you will accept them. As well, your defensive slots should already be filled and accepted.

You may have noticed that I had explored twice in a row whereas you did not need to in order to build the max amount of buildings per turn. This is because I encountered some bad exploration (a 14 and a 15 acre) when I should have gotten 25. If this happens to you, don't worry about it. This is a guideline. Just try to stick to it as close as you can, and you'll do fine. :)
build 8 CS from leftover land from day before.
(Be careful with this. Make sure you have enough food to support this move. You should be ok because of the 10 farms built at the end of your turns from yesterday. Go to the status page and see if you are loosing any food, and check your food stores. If you don't think you can support this, explore until you can maximize your buildings per turn, build 10 farms and put the rest into industrial complexes. Then build the construction sites.)
build 8 CS again (same as above)
explore
explore
build industry
build 4 construction sites
explore
build industry
explore
explore
build industry
explore
explore (got a really low amount of land that time :( )
explore
build industry
explore
build 5 farm, rest industry
explore
explore
build industry
explore
explore
build industry
explore
explore
build industry
explore
build 10 farm, rest industry
explore
explore
build industry
explore
explore
build industry
explore
explore
build industry
sell max amount of troops and turrets on your last turn, at 3 dollars below current cost. I sold troops at $100 just to make sure they'd sell. We're going to save our jets for land grabbing tomorrow. :)

Today we will start land grabbing. The best targets are retal targets, and they are posted in the defence board. I highly recommend taking those first. If you do, make sure you do a news search to make sure the retal hasn't al