Whats everyones starting plan ?
Build up your main building, academy, warehouse, docks, trading post.
As soon as you have a trading post and trading ships you can start selling the excess of whatever resource your island has. Mine has wine so I am selling that and my excess of wood. This has got me quite a lot of money which means I can buy what I need of the other resources. It also means I can operate at a deficit, all my people are working either in wood cutting or grape vines or research atm.
1 person can make around 4 gold if left alone, however he can also cut 1 wood which can then be sold for 15 gold or more. So it is best to have them working as much as possible.
Build your academy up as quickly as you can. It's the most important thing. Only worry about your main building when you are getting close to your population cap.
Build the other buildings as you research them. Tavern is quite important as your population will grow quickly if you give them wine.
Build up your trading post and build barracks and dry dock for the future when you will need an army. Right now I haven't bothered with an army as I was only attacked once and I asked the guy politely not to attack. Now I'm the same size as him so he won't anyway
If you are under attack then build up your warehouse. It will keep your resources safe.
Build your trading post up so you can put more goods on the market at the same time.
Research wise go for wealth first. That will let you mine/grow whatever your island resource is. Then you can sell it and you're rolling in money then
After that I'd go for expansion. Personally I got well digging and paper but neither are that important. I also got up to professional army in military but as I said im not concentrating on military yet.
EDIT: Oh and always try and have something building. That's what takes the most time so don't waste it. Always make sure you have enough resources to build something or upgrade a building as soon as your currently building one is finished.